Matching Items (6)
Filtering by

Clear all filters

42244-Thumbnail Image.png
Created2009-12
Description

This plan was undertaken by the Arizona Department of Transportation Multimodal Planning Division Aeronautics Group to evaluate and recommend a terminal area layout to meet anticipated terminal area demands.

41094-Thumbnail Image.png
ContributorsMcCarl, J. R. (Author)
Created1927-11-15
Description

Letter from J. R. McCarl to Secretary of the Interior on concessions and contracts in the park.

41136-Thumbnail Image.png
ContributorsMoran, P. J. (Author)
Created1925-04-08
Description

Letter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trail.

41162-Thumbnail Image.png
ContributorsMoran, P. J. (Author)
Created1926-03-24
Description

Letter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trail.

67291-Thumbnail Image.png
Created1986-03
DescriptionCooperative National Park Resources Study Unit of Arizona, a special report, v no. 4, improving viistor communciation in Grand Canyon National Park
67293-Thumbnail Image.png
Created1986-04
Description

Cooperative National Park Resources Studies Unit for University of Arizona, effects on Glen Canyon Dam releases on Grand Canyon River trips, a technical report, vol. no. 16.