Author
Billingsley, George H.
5
Felger, Tracey J.
5
Geological Survey (U.S.)
Priest, Susan S.
United States. National Park Service
Navajo Nation, Arizona, New Mexico & Utah
2
Hopi Tribe of Arizona
1
Kaibab Band of Paiute Indians of the Kaibab Indian Reservation, Arizona
1
United States. Bureau of Land Management
1
United States. Forest Service
1