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Bill to Establish the Grand Canyon National Park in Arizona (H.R. 20477)

ContributorsUnited States House of Representatives (Author)
Created1917-01-24
DescriptionBill to establish the Grand Canyon as a National Park.
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Improving Visitor Communications in Grand Canyon National Park

ContributorsGreenberg, Laura B. (Author) / Underhill, A. Heaton (Author) / Cooperative National Park Resources Studies Unit, University of Arizona (Publisher)
Created1986-03
DescriptionCooperative National Park Resources Study Unit of Arizona, a special report, v no. 4, improving viistor communciation in Grand Canyon National Park