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ContributorsGrand Canyon National Park, National Park Service, U.S. Department of the Interior (Publisher)
Created1977-09
DescriptionNatural resources management plan and environmental assessment for preserving natural resources within the park for use and enjoyment of visitors. The approach is guided by the concept of maintaining and perpetuating ecosystems rather than protecting or preserving individual features or favored species.
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962
ContributorsPalgen-Maissoneuve, Mimi, 1918-1995 (Photographer)
Created1942 to 1962