Author: Shirley Sargent
 
Sargent's best-selling book was first published in 1971. It is filled with Muir quotes and historic photographs, detailing the significant role of John Muir in exploring, describing, and studying the glacial origin of Yosemite, and efforts leading to its protection. Unlike most of Sargent's books, this one has almost no footnotes nor a bibliography. At 48 pages it is a wonderful introduction to John Muir.