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ContributorsDarton, Nelson Horatio (Author) / Fred Harvey (Publisher)
Created1917
DescriptionBooklet describing a geological survey of the Grand Canyon. Four editions: 1917, 1929, 1936, 1950.
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ContributorsHarbin, Adrian (Author)
Created1937
DescriptionDescription of a four day trip to the Grand Canyon.
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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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ContributorsEakin, J. R. (Author)
Created1924-10-24
Description

Travel statistics for Grand Canyon National Park.

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ContributorsEakin, J. R. (Author)
Created1924-03-05
DescriptionTravel statistics on visitors by rail and automobile between 1922-1924.
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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.