Introduction to the Harry Truman to Jimmy Carter era goes here
The Dinosaur National Monument controversy spans the early years of this era, as do the Sierra Club’s efforts to publicize it. “This is Dinosaur,” edited by Wallace Stegner, was published in 1955.
Image credit: Alfred Knopf, “This is Dinosaur,” Wallace Stegner, Editor
For more see http://www.sierraclub.org/history/timeline.aspx