The confluence of the Colorado and Green Rivers in Canyonlands National Park, Utah. Note sediment discharging from the Green into the Colorado River. This image is from a collection of hundreds of beautiful images,Geomorphology: A Collection of Images, sold to raise funds for The Association of American Geographers Geomorphology Specialty Group Student Research Fund. Contact Dr. Mike Slattery at m.slattery@tcu.edu for more information