Add to ORKGtypescript report, black and white, describing the mammals of Grand Canyon National Park with cover drawing of a bighorn sheep
This document is the result of a study of the terrestrial mammals found at Cedar Breaks National Mon...
Color 35-mm slide photograph of a two-page illustration inside Clarence E. Dutton's "Atlas to accomp...
Department of the Interior draft environmental statement of the proposed wilderness classification f...
typescript report, black and white, describing the birds of Grand Canyon National Park with cover dr...
Press release on the increase in wildlife in the Grand Canyon including mountain sheep, deer, and th...
Brief summary of a biological survey of the Painted Desert, specifically the San Francisco Mountain ...
Handwritten cover titled, "Nature Notes of Grand Canyon, Polyphemus Moth, Female, Found at Grand Can...
Monthly bulletin, black and white, describing the natural history and scientific features of Grand C...
Feral burro managment plan and evnironmental assessment for Grand Canyon National Park in Arizon
Color 35-mm slide photograph of a display of books about the Grand Canyon, including the title page ...
A historical review of desert bighorn sheep and description of the efforts by biologists and park ra...
Color 35-mm slide photograph of a display of books about the Grand Canyon, including the title page ...
Summary; Introduction; Study area; Methods; Results; Birds; Mammals; Additional observations; Litera...
At the headd of title: Department of the interior, Franklin K. Lane, secretary. national park servic...
'Prince', Grand Canyon.Field trip of 1932GrayscaleBowman nitrate negative, box 1
This document is the result of a study of the terrestrial mammals found at Cedar Breaks National Mon...
Color 35-mm slide photograph of a two-page illustration inside Clarence E. Dutton's "Atlas to accomp...
Department of the Interior draft environmental statement of the proposed wilderness classification f...
typescript report, black and white, describing the birds of Grand Canyon National Park with cover dr...
Press release on the increase in wildlife in the Grand Canyon including mountain sheep, deer, and th...
Brief summary of a biological survey of the Painted Desert, specifically the San Francisco Mountain ...
Handwritten cover titled, "Nature Notes of Grand Canyon, Polyphemus Moth, Female, Found at Grand Can...
Monthly bulletin, black and white, describing the natural history and scientific features of Grand C...
Feral burro managment plan and evnironmental assessment for Grand Canyon National Park in Arizon
Color 35-mm slide photograph of a display of books about the Grand Canyon, including the title page ...
A historical review of desert bighorn sheep and description of the efforts by biologists and park ra...
Color 35-mm slide photograph of a display of books about the Grand Canyon, including the title page ...
Summary; Introduction; Study area; Methods; Results; Birds; Mammals; Additional observations; Litera...
At the headd of title: Department of the interior, Franklin K. Lane, secretary. national park servic...
'Prince', Grand Canyon.Field trip of 1932GrayscaleBowman nitrate negative, box 1
This document is the result of a study of the terrestrial mammals found at Cedar Breaks National Mon...
Color 35-mm slide photograph of a two-page illustration inside Clarence E. Dutton's "Atlas to accomp...
Department of the Interior draft environmental statement of the proposed wilderness classification f...