BRAVE THE WILD RIVER: The Untold Story of Two Women Who Mapped the Botany of the Grand Canyon

1938. For Elzada Clover and Lois Jotter, the expedition down the Colorado River held a tantalizing appeal: no one had yet surveyed the plant life of the Grand Canyon, and they were determined to be the first. Their plant list, including four new cactus species, would one day become vital for efforts to protect and restore the river ecosystems.