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Part Three: Citizen and Professional Science in Glen Canyon National Recreation Area
October 21, 2022
THIS IS PART THREE
PROJECT PROGRAMMING: Lake Powell Sedimentation
1992 to 2004: Dr. Robert H. Webb (USGS, retired), Dr. Jayne Belnap (USGS, retired), and John Weisheit.
REPEAT PHOTOS (jpg images)
1994 to 2000 - San Juan River Sedimentation Project by Donald Baars and Gene Stevenson
1998 to 2000: Glen Canyon Institute; Citizen's Environmental Assessment on the decommissioning of Glen Canyon Dam.
2002 to 2006: Dr. John Dohrenwend (USGS, retired) & John Weisheit (Colorado Riverkeeper)
Photography, Photo Matches and Presentations
Note: The trailer camp in the photos above ware occupied by the workers of Highway 95 and for road and bridge construction. You will notice that heavy equipment is gathering and sorting Colorado and Dirty Devil river gravels (Quaternary Period) for road base and for the bridge approaches. A marina was also available for boaters and operated by commercial outfitters, namely John Frank Wright (Mexican Hat Expeditions) and Gaylord Stavely (Canyoneers).
Additional Information about Glen Canyon Photography by Tad Nichols
Utah State University: 2005 to 2022
__________________________________________________________2017 - Rebecca Solnit
2017 to present: The Returning Rapids Project; Mike DeHoff (Principal Investigator) and colleagues
2017 and 2018: Filmmaker Taylor Graham for National Geographic
2021 to present: Glen Canyon Rejuvenation Project; Dr. Dan McCool and colleagues
Aerial Photos: Light Hawk Overflight of September 10, 2021, PDF Portfolios.
Reservoir boating trip; photos and report: 6-day camping trip to Bullfrog Marina, Moki Canyon, Forgotten Canyon, and Lake Canyon.
October 2021 - 100th Anniversary of the Kelly W. Trimble 1921 USGS San Juan Expedition
October of 2021 - 100th anniversary of the William R. Chenoweth 1921 USGS Canyonlands Expedition.
A repeat photography boat trip; October 10 to 14, 2021; reservoir elevation 3545 feet.
Note: PDF Portfolios of general reservoir conditions; file size reduced; still takes awhile to download.
Original images before 1964 and the match occurred in 2021 at elevation 3545 feet
Note: Matches to be perfected with new additions in October of 2022
All photos by John Weisheit and public domain.
October of 2022 Matches
Matching photos from the Nielsen Collection near Farley, White and Trachyte canyons. Also 1921 USGS photos between The Horn and Bullfrog Creek.
Other Locations and photographers
Stay tuned for a more detailed narratives that will include landscape and aerial photos.End of Part Three
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