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ContributorsEakin, J. R. (Author) / United States National Park Service (Publisher)
Created1924-03-05
Description

Press release comparing visitor attendance to the park by year. A 26 percent increase from 1923 to 1924 is noted.

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ContributorsMaxon, John H. (Author) / Campbell, Ian (Author) / American Journal of Science (Publisher)
Created1934-10-01
DescriptionExcerpt on the Archean Ripple Mark in the Grand Canyon.
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ContributorsUnited States National Park Service (Publisher)
DescriptionMap of Kaibab National Forest with information about tours and drives in the park. Circa 1940.
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ContributorsUnited States National Park Service (Publisher)
Created1926-12-27
DescriptionRequest for proposals to operate hotels, buildings, camps and facilities near the North Rim of the Grand Canyon National Park.
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ContributorsMatthes, F. (Author) / Evans, R. T. (Author) / The Military engineer (Publisher)
Created1926-05
DescriptionGeological Survey of the Grand Canyon in published journal. Vol. XVIII, No. 99.
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ContributorsUnited States National Park Service (Publisher)
Created1939-04
DescriptionEducational leaflet on the formation of the Grand Canyon.