You are here: Home > Library > Our greatest national monument: The National Geographic Society completes its explorations in the Valley of Ten Thousand Smokes
OUR GREATEST NATIONAL MONUMENT: THE NATIONAL GEOGRAPHIC SOCIETY COMPLETES ITS EXPLORATIONS IN THE VALLEY OF TEN THOUSAND SMOKES
Griggs, R. F., 1921, Our greatest national monument: The National Geographic Society completes its explorations in the Valley of Ten Thousand Smokes: National Geographic Magazine, v. 40, n. 3, p. 219-292.