. "Elzada Clover (1897\u20131980) was an American botanist who was the first to catalog plant life in the Grand Canyon on the Colorado River. She and Lois Jotter became the first two woman to raft the entire length of the Grand Canyon."@en . "1897Z"^^ . "1980Z"^^ . . . . . "Clover, Elzada"@en . . "American botanist" . . "Elzada U. Clover"@en .