Autor
Curtis, Joseph E. 1922-2010
2
Estados Unidos. National Park Service
2
Kraus, Richard Gordon 1923-2002
2
National Geographic Society
2
Tilden, Freeman 1883-1980
2
Wood, Frances Elizabeth
2
Adams, Ansel Easton 1902-1984
1
Bergoeing Guida, Jean Pierre 1944-
1
Burns, Ken 1953-
1
Duncan, Dayton
1
Hight, Maryann
1
Jeppesen and Company, Denver
1
Johnson, Peter C.
1
Kaiser, Harvey H. 1936-
1
Mallek, William
1
Moker, Molly
1
Morell, Virginia
1
National Geographic Society. Cartographic Division
1
National Park Foundation
1
Nature Conservancy
1
Newhall, Nancy Wynne
1
Olmsted, Frederick Law 1822-1903
1
Riffel, Casey Ryan
1
Riley, Laura
1
Riley, William 1931-
1
Salas Rojas, Pablo
1
Scott, David L.
1
Scott, Kay W.
1
South Dakota. Department. of Game, Fish and Parks
1
Sutton, Silvia Barry 1940-1997
1
United States. Department of the Interior. National Park Service. Office of the Chief Scientist
1
White, Mel 1950-
1
Williams, Dave
1