Difference between revisions of "RECREATION"

Latest revision as of 16:21, 5 February 2024

Colorado River Recreation

Sandbars have been used as campsites by river runners and hikers since the first expeditions to the region more than 100 years ago. Because the Colorado River is dominated by bedrock cliffs and steep talus slopes, sandbars provide unique areas along the river that are flat, relatively free of vegetation, easily accessible by river runners, and able to withstand high usage with negligible impact. These campsites continue to be an important part of the recreational experience for the more than 25,000 hikers and river runners that visit the Colorado River corridor each year. [1]

The motor season starts on April 1 and lasts through September 15.

LTEMP Resource Goal for Recreational Experience

Maintain and improve the quality of recreational experiences for the users of the Colorado River Ecosystem. Recreation includes, but is not limited to, flatwater and whitewater boating, river corridor camping, and angling in Glen Canyon.

Desired Future Condition for for Recreation

River Recreation in Grand Canyon National Park
• Stewardship worthy of the Grand Canyon so that it can be passed from generation to generation in as natural condition as possible.
• Provide maximum opportunity to experience the wilderness character of the canyon.
• Wilderness experiences and benefits available in the canyon include solitude, connection to nature, personal contemplation, joy, excitement, the natural sounds and quiet of the desert and river, and extended time periods in a unique environment outside the trappings of civilization.
• A river corridor landscape that matches natural conditions as closely as possible, including extensive beaches and abundant driftwood.
• A river corridor ecosystem that matches the natural conditions as closely as possible, including a biotic community dominated in most instances by native species.
• A dynamic river ecosystem characterized by ecological patterns and processes within their range of natural variability.
• Numerous campable sand bars distributed throughout the canyon.
• Recreational and wilderness experiences minimally affected by research and management activities.
• River flows that continue to be within a range that is reasonably safe, given the inherent risks involved in river recreation.
River Recreation in Glen Canyon National Recreation Area
• A quality recreation experience in Glen Canyon.
• Camping beaches suitable for recreational use.
• A setting and ecosystem that is as close to natural conditions as possible.
• Quality river running and angling recreation opportunities.
Blue Ribbon Trout Fishery in Glen Canyon National Recreation Area
• A high-quality sustainable recreational trout fishery in the river corridor in GCNRA, while minimizing emigration of non-native fishes.
• Operate Glen Canyon Dam to achieve the greatest benefit to the trout fishery in GCNRA without causing excessive detriment to other resources.
River Corridor Stewardship
• Management of Glen Canyon Dam that is significantly driven by concern for the cultural values and ecological integrity of the river corridor through the Grand Canyon, with preservation and protection considered over the long term (multiple generations).
• A well-informed public, confident that high quality scientific information is being used for best stewardship practices in the CRE.

The Recreation DFCs are meant to describe goals and objectives for human use of the Colorado River Ecosystem (CRE) through GCNRA and the GCNP. They are intended to include not only traditional recreational activities such as whitewater rafting, camping, and fishing, but also such things as educational activities, spiritual engagement, and other appropriate activities and values. Grand Canyon and Glen Canyon offer many ways for people to experience, appreciate, and learn from them, even to those who never visit in person.

---	---	---

Updates

Causal factors for loss of campsite area
There were two primary drivers responsible for the net loss in campsite area — (1) increases and decreases in campsite area as a result of deposition and erosion associated with controlled floods and regular dam operations and (2) long-term declines in campsite area due to vegetation encroachment. Gains and losses in campsite area associated with topographic change can cancel each other out, whereas vegetation change, for the most part, only leads to losses in campsite area. In terms of net change, vegetation encroachment contributed to 47 percent of the overall net loss in campsite area, and topographic change contributed to 53 percent of the overall net loss in campsite area. Controlled floods can lead to increases in campsite area and are currently the only management strategy used to improve campsites along the Colorado River corridor. However, erosion of flood-deposited sandbars during normal dam operations following controlled floods causes these increases in campsite area to be short lived. At the same time, vegetation cover continues to increase, resulting in the progressive decline of campsite area. One potential strategy to increase campsite area more often is more frequent implementation of controlled floods to build sandbars. This strategy was initiated by the Bureau of Reclamation in 2012 by the adoption of a high-flow experimental protocol. This protocol allows for the implementation of a controlled flood every year, provided there is sufficient sand supplied by the Paria River (Bureau of Reclamation, 2012). Preliminary findings indicate that the protocol is resulting in larger sandbars (Grams and others, 2015). However, there is not always a direct correlation between increases in sandbar size and increases in campsite area. Whether this strategy leads to increases in campsite area that meet the management objectives set forth by the Glen Canyon Dam Adaptive Management Program for increasing the size of campsite area in critical and noncritical reaches remains uncertain. Removal of vegetation may be another viable strategy for increasing the size of campsite area. Although most vegetation expansion is occurring in noncritical reaches, these sites tend to be larger in size and more numerous along the river corridor. Physically removing vegetation at these sites would likely accomplish little in terms of increasing recreational carrying capacity, because many of these sites can still accommodate large river groups despite having increases in vegetation cover. Instead, targeting smaller sites in critical reaches and focusing on removal of groundcover shrubs such as arrowweed and camelthorn (and (or) removal of tamarisk that is impacted by tamarisk beetle herbivory) would likely be the most practical and successful vegetation removal strategy. [2]
Critical Reaches
Marble Canyon (river miles 9-41) Upper Gorge (river miles 71-114) Muav Gorge (river miles 131-165) Changes to Grand Canyon Camping Beaches, Year 2000: Annual Report of Repeat Photography by Grand Canyon River Guides, Inc. (Adopt-a-Beach Program)
What makes a beach campable?
The threshold of 8 degrees is used to describe the approximate threshold for areas considered flat enough to use for camping (Kearsley and others, 1994; Hadley and others, 2018).

Information and Links
GCMRC Annual Reports page 2006 Colorado River Management Plan Grand Canyon Private Boaters Association (GCPBA) Page Grand Canyon River Guides (GCRG) Page Boatman's Quarterly Review GCMRC Campsite Atlas (requires microsoft silverlight plug-in) GCMRC Campsite photo tour Sediment Page Vegetation Page The Lees Ferry Rainbow Trout Fishery Page Over Flights Page
Recreation Projects
Colorado River Runners Oral History Project The Colorado River Runners Oral History Project is unparalleled within river running communities: though there are many regional organizations, no others have undertaken a project of this scope. GCRG unofficially began collecting oral history interviews in 1990 at “Woman of the River” Georgie White Clark’s 80th birthday party. Since that time, GCRG’s oral history project has produced nearly 100 interviews. Those interviews continue to serve as the centerpiece for each issue of our publication, the Boatman’s Quarterly Review. Adopt a Beach Project Implemented in 1996 after the first historic “Flood Flow,” Adopt-a-Beach is a “watch dog” program that allows volunteer guides to keep close tabs on changes to the recreational resource that we depend upon – camping beaches in Grand Canyon. To be specific, this long term photo-matching, beach monitoring effort documents changes in sand deposition on camping beaches along the Colorado River resulting from Glen Canyon Dam flows. The results are disseminated to strategic river managers including Grand Canyon National Park, the Adaptive Management Program, and the Grand Canyon Monitoring & Research Center. Adopt-a-Beach is a fabulous example of a stewardship in action as we endeavor to “take care of our own back yard.” Please check out our extensive photo gallery as well as the Executive Summaries of past AAB reports. Full Reports are available upon request. And contact [email protected] if you’d like to volunteer! [3] 2009 Executive Summary 2008 Executive Summary 2006-2007 Executive Summary 2005 Executive Summary 2004 Executive Summary 2003 Executive Summary 2002 Executive Summary 2000-2001 Executive Summary Executive Summary of Results for Years 1996–2003 Long Term Monitoring of Camping Beaches in Grand Canyon: A Summary of Results from 1996 – 2001 Annual Report of Repeat Photography By Grand Canyon River Guides, Inc. (Adopt-A-Beach Program) Changes to Grand Canyon Camping Beaches, Year 2000: Annual Report of Repeat Photography by Grand Canyon River Guides, Inc. (Adopt-a-Beach Program)
Presentations and Papers
2024 Debris flow risk at campsites in Grand Canyon 2023 Assessing 50 years of ecological changes at campsites along the Colorado River in Grand Canyon 2022 Adopt-A-Beach 2021 Life Needs Rivers Modeling Tools for Management: Recreation in Glen and Grand Canyons 2020 The Adopt-A-Beach Repeat Photography Project Sandbars and vegetation in Grand Canyon—podcast Changes in sandbars and campsites during the HFE Protocol 2018 Before and After Monsoon Beach/Camp Photos PPT Hadley et al., 2018, Quantifying geomorphic and vegetation change at sandbar campsites in response to flow regulation and controlled floods, Grand Canyon National Park, Arizona: River Research and Applications Hadley et al., 2018, Geomorphology and vegetation change at Colorado River campsites, Marble and Grand Canyons, Arizona: U.S. Geological Survey Report data Neher et al., 2018, Exploring convergent validity between willingness to pay elicitation methods—An application to Grand Canyon whitewater boaters: Journal of Environmental Planning and Management 2017 Neher et al., 2017, Testing the limits of temporal stability—Willingness to pay values among Grand Canyon whitewater boaters across decades. Water Resource Research 2016 Grand Canyon Private Boater's Association (GCPBA) letter requesting slower downramp rates following the Fall 2016 High flow experiment. Life Before AMWG, by Gaylord Staveley, April 19, 2016 2015 The View from the Camp: Grand Canyon River Guides perspective on HFEs and effects on beaches 2014 Hadley. 2014. Geomorphology and vegetation change at Colorado River campsites, Marble and Grand Canyons, AZ, unpublished MS Thesis, School of Earth Sciences and Environmental Sustainability, Northern Arizona University, 158 p. Kaplinski et al. 2014. Colorado River campsite monitoring, Grand Canyon National Park, Arizona, 1998-2012, USGS Open-file Report: 2014-1161, 32 p. 2013 Lauck. 2013. To Re-photograph or Not, That is the Question: The Adopt-A-Beach Program Marches On: Boatman’s Quaterly Review, Winter 2013-2014, 26, 4, p. 21-23. 2012 Camp Sites 2010 Hazel et al. 2010. Sandbar response in Marble and Grand Canyons, Arizona, following the 2008 high-flow experiment on the Colorado River: U.S. Geological Survey Scientific Investigations Report 2010-5015, 52 p. Kaplinskiet al. 2010. Colorado River campsite monitoring, 1998–2006, Grand Canyon National Park, Arizona, in Melis et al. eds., Proceedings of the Colorado River Basin Science and Resource Management Symposium, November 18-20, 2008, Scottsdale, Arizona: U.S. Geological Survey Scientific Investigations Report 2010-5135, 275-284 p. 1999 Behan, J. 1999, Recreation in the Colorado River Ecosystem, Grand Canyon, white paper to GCMRC
Bishop Study and River Recreation Preferences
In Bishop et al. (1987; on page 410 of the 30 page report: “Grand Canyon Recreation and Glen Canyon Dam Operations: An Economic Evaluation) fluctuating flows are defined as any operation where the daily flow fluctuation was equal to or more than 10,000 cfs/day. Bishop treated daily flow fluctuations of less than 10,000 cfs/day as “constant flow releases.” Bishop identified that this “10,000 cfs threshold was determined to be the point at which fluctuations begin to be perceptible to recreationists.” Additionally, Stewart et al.’s (2000) follow-up of the Bishop et al. (1987) study found that angler’s did not identify river level fluctuations, at least under the MLFF operating regime, as an issue. Based on information from Stewart et al (2000) and Bishop et al. (1987), any flow fluctuation below 10,000 cfs/day should be treated the same as a steady flow release. The Stewart Report: Preferences of Recreation User Groups of the Colorado River in Grand Canyon. 2000 The Bishop Study: Grand Canyon Recreation and Glen Canyon Dam Operations: An Economic Evaluation. 1987. pg 407-436 File:1987 Bishop GCDam releases downstream rec analysis user pref.pdf
Other Stuff
RAFTING \| HIKING \| FISHING \|CAMPING \| BOATING \| KAYAKING \| OVERFLIGHTS Grand Canyon Rafting - Documentary of Major Rapids (Horn Creek, Lava, Crystal) A look at 4 early pioneers of Utah river running You Can Ride An All-Electric Raft Down The Colorado River More than 20,000 rafters run the river each year. According to the Basin Study (2012)] results suggested that ecological and recreational metrics were amongst the most vulnerable to future conditions...[Source: 2.4;Figure 2.3]*LINK 150210 Respectful Recreation -Source_Boatman's Quarterly Motorized/Non-motorized Boating Seasons

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+[[File:Granite Gorge- SJansen.JPG|thumbnail|center|300px]]
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-|style="width:60%; font-size:100%;"|
+|style="width:60%; font-size:120%;"|
+=='''Colorado River Recreation'''==
+Sandbars have been used as campsites by river runners and hikers since the first expeditions to the region more than 100 years ago. Because the Colorado River is dominated by bedrock cliffs and steep talus slopes, sandbars provide unique areas along the river that are flat, relatively free of vegetation, easily accessible by river runners, and able to withstand high usage with negligible impact. These campsites continue to be an important part of the recreational experience for the more than 25,000 hikers and river runners that visit the Colorado River corridor each year. [https://www.gcmrc.gov/research_areas/sediment_geomorphology/sed/Sed_Geomorph_Camp.aspx]
+The motor season starts on April 1 and lasts through September 15.
+==[http://gcdamp.com/index.php?title=Long-term_Experimental_and_Management_Plan_(LTEMP) '''LTEMP Resource Goal for Recreational Experience''']==
+Maintain and improve the quality of recreational
+experiences for the users of the Colorado River Ecosystem. Recreation
+includes, but is not limited to, flatwater and whitewater boating, river corridor
+camping, and angling in Glen Canyon.
-'''Desired Future Condition:'''<br>
+==[http://gcdamp.com/index.php?title=Portal:Desired_Future_Conditions_-DFCs '''Desired Future Condition for for Recreation]'''==
 '''River Recreation in Grand Canyon National Park<br>'''
 • Stewardship worthy of the Grand Canyon so that it can be passed from generation to generation in as natural condition as possible.<br>
@@ Line 63: / Line 79: @@
 |style="color:#000;"|
-[[File:CampsiteArea 1998 2014.jpg|600px]]
+[[File:CampsiteArea 1998 2014.jpg|center|600px]]
-|}
+|-
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;"> Causal factors for loss of campsite area </h2>
+|-
+|style="color:#000;"|
+There were two primary drivers responsible for the net loss in campsite area — (1) increases and decreases in campsite area as a result of deposition and erosion associated with controlled floods and regular dam operations and (2) long-term declines in campsite area due to vegetation encroachment. Gains and losses in campsite area associated with topographic change can cancel each other out, whereas vegetation change, for the most part, only leads to losses in campsite area. In terms of net change, vegetation encroachment contributed to 47 percent of the overall net loss in campsite area, and topographic change contributed to 53 percent of the overall net loss in campsite area.
+Controlled floods can lead to increases in campsite area and are currently the only management strategy used to improve campsites along the Colorado River corridor. However, erosion of flood-deposited sandbars during normal dam operations following controlled floods causes these increases in campsite area to be short lived. At the same time, vegetation cover continues to increase, resulting in the progressive decline of campsite area.
+One potential strategy to increase campsite area more often is more frequent implementation of controlled floods to build sandbars. This strategy was initiated by the Bureau of Reclamation in 2012 by the adoption of a high-flow experimental protocol. This protocol allows for the implementation of a controlled flood every year, provided there is sufficient sand supplied by the Paria River (Bureau of Reclamation, 2012). Preliminary findings indicate that the protocol is resulting in larger sandbars (Grams and others, 2015). However, there is not always a direct correlation between increases in sandbar size and increases in campsite area. Whether this strategy leads to increases in campsite area that meet the management objectives set forth by the Glen Canyon Dam Adaptive Management Program for increasing the size of campsite area in critical and noncritical reaches remains uncertain.
+Removal of vegetation may be another viable strategy for increasing the size of campsite area. Although most vegetation expansion is occurring in noncritical reaches, these sites tend to be larger in size and more numerous along the river corridor. Physically removing vegetation at these sites would likely accomplish little in terms of increasing recreational carrying capacity, because many of these sites can still accommodate large river groups despite having increases in vegetation cover. Instead, targeting smaller sites in critical reaches and focusing on removal of groundcover shrubs such as arrowweed and camelthorn (and (or) removal of tamarisk that is impacted by tamarisk beetle herbivory) would likely be the most practical and successful vegetation removal strategy. [https://doi.org/10.3133/sir20175096]
+|-
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;"> Critical Reaches  </h2>
+|-
+|style="color:#000;"|
+*Marble Canyon (river miles 9-41)
+*Upper Gorge (river miles 71-114)
+*Muav Gorge (river miles 131-165)
+[[File:CriticalReaches.jpg|thumb|center|800px| [https://www.gcmrc.gov/library/reports/cultural/Recreation/01WRGR0007/AAB%202000.pdf Changes to Grand Canyon Camping Beaches, Year 2000: Annual Report of Repeat Photography by Grand Canyon River Guides, Inc. (Adopt-a-Beach Program)] ]]
+|-
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;"> What makes a beach campable? </h2>
+|-
+|style="color:#000;"|
+*The threshold of 8 degrees is used to describe the approximate threshold for areas considered flat enough to use for camping (Kearsley and others, 1994; Hadley and others, 2018).
+|}
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-! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">Information</h2>
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">Information and Links</h2>
 |-
 |style="color:#000;"|
-*[http://gcdamp.com/index.php?title=Bishop_Study '''Bishop Study and Boater Preferences''']
+*[http://gcdamp.com/index.php?title=Portal:GCDAMP_Knowlege_Assessments GCMRC Annual Reports page]
+*[https://www.nps.gov/grca/learn/management/upload/CRMPIF_s.pdf 2006 Colorado River Management Plan]
+*[http://gcpba.org/ Grand Canyon Private Boaters Association (GCPBA) Page]
+*[http://www.gcrg.org/index.php Grand Canyon River Guides (GCRG) Page ]
+*[http://www.gcrg.org/bqr.php Boatman's Quarterly Review]
+*[https://www.gcmrc.gov/gis/silveratlas1.aspx GCMRC Campsite Atlas] (requires microsoft silverlight plug-in)
+*[https://www.gcmrc.gov/gis/camptour/index.html GCMRC Campsite photo tour]
+*[http://gcdamp.com/index.php?title=GCDAMP_Sediment Sediment Page]
+*[http://gcdamp.com/index.php?title=Riparian_Vegetation Vegetation Page]
+*[http://gcdamp.com/index.php?title=FISHERY The Lees Ferry Rainbow Trout Fishery Page]
+*[http://gcdamp.com/index.php?title=GCDAMP-_Over-Flights Over Flights Page]
+|-
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;"> Recreation Projects </h2>
+|-
+|style="color:#000;"|
+== [http://www.gcrg.org/oral_history.php Colorado River Runners Oral History Project] ==
+The Colorado River Runners Oral History Project is unparalleled within river running communities: though there are many regional organizations, no others have undertaken a project of this scope. GCRG unofficially began collecting oral history interviews in 1990 at “Woman of the River” Georgie White Clark’s 80th birthday party. Since that time, GCRG’s oral history project has produced nearly 100 interviews. Those interviews continue to serve as the centerpiece for each issue of our publication, the [http://www.gcrg.org/bqr.php '''Boatman’s Quarterly Review'''].
+== [http://www.gcrg.org/advocacy_aab.php Adopt a Beach Project] ==
+Implemented in 1996 after the first historic “Flood Flow,” Adopt-a-Beach is a “watch dog” program that allows volunteer guides to keep close tabs on changes to the recreational resource that we depend upon – camping beaches in Grand Canyon.  To be specific, this long term photo-matching, beach monitoring effort documents changes in sand deposition on camping beaches along the Colorado River resulting from Glen Canyon Dam flows.  The results are disseminated to strategic river managers including Grand Canyon National Park, the Adaptive Management Program, and the Grand Canyon Monitoring & Research Center.  Adopt-a-Beach is a fabulous example of a stewardship in action as we endeavor to “take care of our own back yard.”  Please check out our extensive photo gallery as well as the Executive Summaries of past AAB reports.  Full Reports are available upon request.  And contact [email protected] if you’d like to volunteer! [http://www.gcrg.org/advocacy_aab.php]
+*[http://www.gcrg.org/aab/exec_summary_09.pdf 2009 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_08.pdf 2008 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_06.html 2006-2007 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_05.html 2005 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_04.html 2004 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_03.html 2003 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_02.html 2002 Executive Summary]
+*[http://www.gcrg.org/aab/exec_summary_00_01.html 2000-2001 Executive Summary]
+*[http://www.gcrg.org/bqr/17-4/aab.html Executive Summary of Results for Years 1996–2003]
+*[https://www.gcmrc.gov/library/reports/cultural/Recreation/01WRGR0007/AAB%202001%20report.pdf Long Term Monitoring of Camping Beaches in Grand Canyon: A Summary of Results from 1996 – 2001 Annual Report of Repeat Photography By Grand Canyon River Guides, Inc. (Adopt-A-Beach Program)  ]
+*[https://www.gcmrc.gov/library/reports/cultural/Recreation/01WRGR0007/AAB%202000.pdf Changes to Grand Canyon Camping Beaches, Year 2000: Annual Report of Repeat Photography by Grand Canyon River Guides, Inc. (Adopt-a-Beach Program) ]
 |-
@@ Line 85: / Line 162: @@
 |style="color:#000;"|
+'''2024'''
-*'''[[File:GaylordTWG0416.pdf| LIFE BEFORE AMWG, by Gaylord Staveley, April 19, 2016]]'''
+*[[Media:DebrisFlowRisk_ARM_Poster_reviewed2.pdf | Debris flow risk at campsites in Grand Canyon]]
+'''2023'''
+*[https://www.usbr.gov/uc/progact/amp/twg/2023-01-26-twg-meeting/20230126-AnnualReportingMeeting-Assessing50yearsEcologicalChangesCampsitesColoradoRiverGrandCanyon-508-UCRO.pdf Assessing 50 years of ecological changes at campsites along the Colorado River in Grand Canyon]
+'''2022'''
+*[https://www.usbr.gov/uc/progact/amp/twg/2022-06-16-twg-meeting/20220616-AdoptABeach-508-UCRO.pdf Adopt-A-Beach ]
+'''2021'''
+*[https://www.usbr.gov/uc/progact/amp/amwg/2021-02-11-amwg-meeting/20210211-LifeNeedsRivers-Presentation-508-UCRO.pdf Life Needs Rivers ]
+*[https://www.usbr.gov/uc/progact/amp/twg/2021-01-22-twg-meeting/20210122-AnnualReportingMeeting-ModelingToolsManagementRecreationGlenGrandCanyons-508-UCRO.pdf Modeling Tools for Management: Recreation in Glen and Grand Canyons ]
+'''2020'''
+*[https://www.usbr.gov/uc/progact/amp/twg/2020-06-24-twg-meeting/20200624-AdoptABeachPhotography.pdf The Adopt-A-Beach Repeat Photography Project ]
+*[https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.usgs.gov%2Fmission-areas%2Fecosystems%2Fscience%2Fusgs-ecosystems-podcast-series-outstanding-field%3Fqt-science_center_objects%3D0%23qt-science_center_objects&data=04%7C01%7C%7C0480a242627b46269d6308d87f5b43b8%7C31ae220fb94f463a9cfd15bbc9909df5%7C0%7C0%7C637399377259505498%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=znP5xAcqaMCf9FPdLCvKxLdftJvFwhnagMPpf2%2BG2nQ%3D&reserved=0 Sandbars and vegetation in Grand Canyon—podcast]
+*[https://www.usbr.gov/uc/progact/amp/twg/2020-01-13-twg-meeting/20200113-AnnualReportingMeeting-ChangesSandbarsCampsitesDuringHFEProtocol-Presentation-508-UCRO.pdf Changes in sandbars and campsites during the HFE Protocol ]
+'''2018'''
+*[https://www.usbr.gov/uc/progact/amp/twg/2018-10-10-twg-meeting/Attach_08.pdf Before and After Monsoon Beach/Camp Photos PPT]
+*[https://doi.org/10.1002/rra.3349 Hadley et al., 2018, Quantifying geomorphic and vegetation change at sandbar campsites in response to flow regulation and controlled floods, Grand Canyon National Park, Arizona: River Research  and Applications]
+*[https://doi.org/10.3133/sir20175096 Hadley et al., 2018, Geomorphology and vegetation change at Colorado River campsites, Marble and Grand Canyons, Arizona: U.S. Geological Survey Report ] [https://doi.org/10.5066/F7FJ2FQQ data]
+*[https://doi.org/10.1080/09640568.2018.1435411 Neher et al., 2018, Exploring convergent validity between willingness to pay elicitation methods—An application to Grand Canyon whitewater boaters: Journal of Environmental Planning and Management]
+'''2017'''
+*[http://dx.doi.org/10.1002/2017WR020729 Neher et al., 2017, Testing the limits of temporal stability—Willingness to pay values among Grand Canyon whitewater boaters across decades. Water Resource Research]
+'''2016'''
+*[[Media:20171219 GCPBA HFE comments.pdf| Grand Canyon Private Boater's Association (GCPBA) letter requesting slower downramp rates following the Fall 2016 High flow experiment.]]
+*[[Media:GaylordTWG0416.pdf| Life Before AMWG]], by Gaylord Staveley, April 19, 2016
+'''2015'''
+*[https://drive.google.com/file/d/0BwY-Z2c3NTUGMHNSX0hxSW51YjQ/view The View from the Camp: Grand Canyon River Guides perspective on HFEs and effects on beaches]
+'''2014'''
+*Hadley. 2014. Geomorphology and vegetation change at Colorado River campsites, Marble and Grand Canyons, AZ, unpublished MS Thesis, School of Earth Sciences and Environmental Sustainability, Northern Arizona University, 158 p.
+*[http://pubs.usgs.gov/of/2014/1161/ Kaplinski et al. 2014. Colorado River campsite monitoring, Grand Canyon National Park, Arizona, 1998-2012, USGS Open-file Report: 2014-1161, 32 p.]
+'''2013'''
+*[http://www.gcrg.org/bqr.php Lauck. 2013. To Re-photograph or Not, That is the Question: The Adopt-A-Beach Program Marches On: Boatman’s Quaterly Review, Winter 2013-2014, 26, 4, p. 21-23.]
+'''2012'''
+*[https://www.gcmrc.gov/about/ka/KA%202%20-%202-1-12/AM%20Talks/Fairley%200930-1015%20Camp%20Sites.pdf Camp Sites]
+'''2010'''
+*[http://pubs.usgs.gov/sir/2010/5015/ Hazel et al. 2010. Sandbar response in Marble and Grand Canyons, Arizona, following the 2008 high-flow experiment on the Colorado River: U.S. Geological Survey Scientific Investigations Report 2010-5015, 52 p.]
+*[http://pubs.usgs.gov/sir/2010/5135/ Kaplinskiet al. 2010. Colorado River campsite monitoring, 1998–2006, Grand Canyon National Park, Arizona, in Melis et al. eds., Proceedings of the Colorado River Basin Science and Resource Management Symposium, November 18-20, 2008, Scottsdale, Arizona: U.S. Geological Survey Scientific Investigations Report 2010-5135, 275-284 p.]
+'''1999'''
-*'''[https://drive.google.com/file/d/0BwY-Z2c3NTUGMHNSX0hxSW51YjQ/view The View from the Camp: Grand Canyon River Guides perspective on HFEs and effects on beaches]]'''
+*[https://www.usbr.gov/uc/progact/amp/twg/1999-10-22-twg-meeting/Attach_12.pdf Behan, J. 1999, Recreation in the Colorado River Ecosystem, Grand Canyon, white paper to GCMRC]
 |-
-! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">Recreation Types in GCDAMP Planning Area </h2>
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;">[http://gcdamp.com/index.php?title=Bishop_Study Bishop Study and River Recreation Preferences]</h2>
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-*<SPAN>[[Rafting Folder| '''RAFTING''']]-- | [[Hiking Folder|'''HIKING''']]-- | [[GCDAMP--Fishing Folder|'''FISHING''']]-- |[[Camping Folder|'''CAMPING''']]-- | [[Boating Folder | '''BOATING''']]-- | [[Kayaking Folder| '''KAYAKING''']] | [[Overflights Folder| '''OVERFLIGHTS]]</Span>
+In Bishop et al. (1987; on page 410 of the 30 page report: “Grand Canyon Recreation and Glen Canyon Dam Operations: An Economic Evaluation) fluctuating flows are defined as any operation where the daily flow fluctuation was equal to or more than 10,000 cfs/day. Bishop treated daily flow fluctuations of less than 10,000 cfs/day as “constant flow releases.” Bishop identified that this “10,000 cfs threshold was determined to be the point at which fluctuations begin to be perceptible to recreationists.” <br>
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-<Span>[[File:GCD Visitors Center -Raft Display-PIC.JPG|250px]]|[[File:GCD Visitors Center -Raft Display II-PIC.JPG|250px]][[File:Itll blow your hat off- SJansen.jpg |250px]][[File:Granite Gorge- SJansen.JPG|150px]][[File:Kayaking the CR-PIC.jpg|150px]]</Span>
-*'''[http://www.greencarreports.com/news/1101910_now-you-can-ride-an-all-electric-raft-down-the-colorado-river|Now You Can Ride An All-Electric Raft Down The Colorado River]'''
+Additionally, Stewart et al.’s (2000) follow-up of the Bishop et al. (1987) study found that angler’s did not identify river level fluctuations, at least under the MLFF operating regime, as an issue. Based on information from Stewart et al (2000) and Bishop et al. (1987), '''any flow fluctuation below 10,000 cfs/day should be treated the same as a steady flow release'''.
+*[http://www.gcmrc.gov/library/reports/cultural/Recreation/Stewart2000.pdf The Stewart Report: Preferences of Recreation User Groups of the Colorado River in Grand Canyon. 2000]
+*[http://www.swrcb.ca.gov/water_issues/programs/ocean/cwa316/docs/cwa316may2010/comments041310/bishop_etal.pdf The Bishop Study: Grand Canyon Recreation and Glen Canyon Dam Operations: An Economic Evaluation. 1987. pg 407-436 ]
+*[[File:1987 Bishop GCDam releases downstream rec analysis user pref.pdf| The Bishop Study: Glen Canyon Dam Releases and Down Stream Recreation: An Analysis of User Preferences and Economic Values. 1987. Report to GCES. 398 pgs. ]]
+|-
+! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;"> Other Stuff </h2>
+|-
+|style="color:#000;"|
+*<SPAN>[[Rafting Folder| '''RAFTING''']] | [[Hiking Folder|'''HIKING''']] | [[GCDAMP--Fishing Folder|'''FISHING''']] |[[Camping Folder|'''CAMPING''']] | [[Boating Folder | '''BOATING''']] | [[Kayaking Folder| '''KAYAKING''']] | [[Overflights Folder| '''OVERFLIGHTS]]</Span>
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+<Span>[[File:Itll blow your hat off- SJansen.jpg |250px]][[File:Granite Gorge- SJansen.JPG|150px]][[File:Kayaking the CR-PIC.jpg|150px]]</Span>
+*[https://www.youtube.com/watch?v=x7eESAr895g Grand Canyon Rafting - Documentary of Major Rapids (Horn Creek, Lava, Crystal)]
+*[http://www.ksl.com/?sid=41565135&nid=1288&title=a-look-at-4-early-pioneers-of-utah-river-running A look at 4 early pioneers of Utah river running]
+*[http://www.greencarreports.com/news/1101910_now-you-can-ride-an-all-electric-raft-down-the-colorado-river|Now You Can Ride An All-Electric Raft Down The Colorado River]
 *More than 20,000 rafters run the river each year.
 *According to the ''Basin Study'' (2012)] results suggested that ecological and '''recreational''' metrics were amongst the most vulnerable to future conditions...[Source: 2.4;Figure 2.3]*[http://www.usbr.gov/lc/region/programs/crbstudy/finalreport/Executive%20Summary/Executive_Summary_FINAL_Dec2012.pdf| LINK]
-*'''[[Media:150210 Respectful Recreation BQR (2).pdf|150210 Respectful Recreation -Source_Boatman's Quarterly]]'''
+*[[Media:150210 Respectful Recreation BQR (2).pdf|150210 Respectful Recreation -Source_Boatman's Quarterly]]
+*[http://gcdamp.com/index.php?title=GCDAMP-Boat_Season Motorized/Non-motorized Boating Seasons]
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Difference between revisions of "RECREATION"

Latest revision as of 16:21, 5 February 2024

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