Brave the Wild River: The Untold Story of Two Women Who Mapped the Botany of the Grand Canyon

In the summer of 1938, botanists Elzada Clover and Lois Jotter set off down the Colorado River, accompanied by an ambitious expedition leader and three amateur boatmen. With its churning rapids, sheer cliffs and boat-shattering boulders, the Colorado River was famed as the most dangerous river in the world. But for Clover and Jotter, it held a tantalising appeal: no one had surveyed the Grand Canyon's plants, and they were determined to be the first.