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ContributorsKolb Bros. (Photographer)
Created1914-07-17
Description

Black and white print with members of the Luhrs family. Typescript annotation, "July 17th, 1914. Going down Bright Angel Canyon of Arizona, Those on the mules, from bottom up: unknown, unknown, Ella Luhrs, Emma Luhrs, George H. N. Luhrs, unknown, Roger Hunt, George Luhrs Jr., Catherine Margarita 'Gretchen' (Mrs Geo

Black and white print with members of the Luhrs family. Typescript annotation, "July 17th, 1914. Going down Bright Angel Canyon of Arizona, Those on the mules, from bottom up: unknown, unknown, Ella Luhrs, Emma Luhrs, George H. N. Luhrs, unknown, Roger Hunt, George Luhrs Jr., Catherine Margarita 'Gretchen' (Mrs Geo H. N.) Luhrs standing beside George Luhrs Jr." Beside the trail, a sign displays, "Photo by Kolb Brothers."

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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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Created2009-07
Description

Testimony for The Subcommittee on National Parks, Forests and Public Lands of the Committee on Natural Resources presented against the withdrawal of the uranium-bearing lands around the Grand Canyon National Park.

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ContributorsSingh, Madan M. (Author) / The Pride Publishing Company (Author)
Created2009-07
Description

Regional benefits of the Rosemont Project are discussed in greater detail in the Economic Impacts Report prepared by the Seidman Institute of the Arizona State University that is part of this document. It covers Pima and Santa Cruz Counties; the major benefits accruing to Pima County.