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- All Subjects: Grand Canyon National Park (Ariz.)
- All Subjects: Grand Canyon (Ariz.)
- Creators: National Park Service, U.S. Dept. of the Interior
- Creators: Kolb Bros.
- Creators: Evans, R. T.
Black and white print of five women and one man riding mules on the Bright Angel Trail. A wooden sign next to the trail says, "Photo by Kolb Bros." Handwritten annotation, "Annie Goodenough on Bright Angel Trail."
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."
Final environmental statement: proposed master plan, Grand Canyon complex, Arizona, John E. Cook as acting director for plan, book.