Steamboat Rock, Echo Park, Confluence of Green River and Yampa River, Dinosaur National Monument, Utah, 1955, Participated in the Book "This Is Dinosaur: Echo Park Country And Its Magic Rivers" edited by Wallace Stegner, published by Sierra Club. The first book made for a conservation cause. Given to all U. S. Congress members, President Dwight D. Eisenhower and other Washington D. C. leaders. Helped David Brower, Executive Director of the Sierra Club and leader of the coalition of conservation organizations, fight the flooding of 98 out of 104 river miles within Dinosaur National Monument. Coalition members lobbied, wrote letters, and ran advertisements adding a new brand of activism to conservation ideals and birthing modern environmentalism. Congress eventually voted against the building of two proposed dams at Echo Park and Split Mountain inside National Monument boundaries. David Brower used 9th Grade math to prove to Congress that Glen Canyon Dam could store more water than the dams on the Green River and Yampa River, but regretted sacrificing Glen Canyon later when he explored the little known beauty of this canyon paradise before the dam filled “Lake” Powell.