
The narratives in this book are of journeys made in three wildernesses - on a coastal island, in a Western mountain range, and on the Colorado River in the Grand Canyon. The four men portrayed here have different relationships to their environment, and they encounter each other on mountain trails, in forests and rapids, sometimes with reserve, sometimes with friendliness, sometimes fighting hard across a philosophical divide.
"Encounters with the Archdruid" by John McPhee, about David Brower, former director of the Sierra Club, and his advocacy for preserving wilderness areas "untouched" by humans.
"Forests: A Very Short Introduction" by Jaboury Ghazoul, which explores how human presence, even in ancient times, has led to profound changes in landscapes for their benefit.
"1491: New Revelations of the Americas Before Columbus" by Charles C. Mann, which I’ve just started reading, hypothesizes that Indigenous peoples in the Americas actively transformed their environment to a much greater extent than previously believed.
"A Sand County Almanac" by Aldo Leopold since he is referenced in the article.
A third of the book follows David Brower (Executive Director of the Sierra Club; Glen Canyon Dam opponnent) and Floyd Dominy (US Bureau of Reclamation director) as they float the pre-dammed Colorado River.
If you are in any way interested in the sport of Tennis, I cannot recommend his 'Levels of the Game' more. It focuses on Arthur Ashe and Clark Graebner, but uses their history to paint a much bigger story.