The role of unregulated floods in maintaining channel complexity in regulated rivers: Case study from the Green River in Canyonlands National Park, Utah

Paul E Grams1, David J Dean2, David J. Topping3, Alex E Walker4 and John C Schmidt4, (1)USGS Grand Canyon Monitoring and Research Center, Flagstaff, AZ, United States, (2)USGS, Grand Canyon Monitoring and Research Center, Southwest Biological Science Center, Flagstaff, AZ, United States, (3)USGS, Flagstaff, AZ, United States, (4)Utah State University, Watershed Sciences, Logan, UT, United States