On: Glen Canyon Revealed

[ddhhyy]

In the same vein, have a look at John McPhee's Encounter with the Archdruid https://en.wikipedia.org/wiki/Encounters_with_the_Archdruid

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.