Conservationists and the battles to keep dams out of Yellowstone: Hetch Hetchy overturned
Yochim MJ. 2001. Conservationists and the battles to keep dams out of Yellowstone: Hetch Hetchy overturned. Pages 28-29. In Author unknown: Yellowstone Lake: hotbed of chaos or reservoir of resilience? 6th biennial scientific conference on the Greater Yellowstone Ecosystem. Yellowstone National Park. October 8-10, 2001. National Park Service. Yellowstone National Park
Between 1919 and 1938 there were serious efforts to create dams in Yellowstone for irrigation outside the park.