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- All Subjects: Roosevelt, Theodore, 1858-1919
- All Subjects: Kolb Bros.
- All Subjects: Water-power
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Letter from Joseph J. Cotter to Carl Hayden regarding the use of water power and summer homes in the proposed park boundaries.
Letter from Bernie Zachau to Carl Hayden regarding water power in the Grand Canyon.
Letter to Carl T. Hayden regarding a water-power bill in effect for the Grand Canyon.
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 of more than 40 people near a canyon overlook with handwritten annotation, "5-06-03 Looking Toward Canon [sic] From Hotel."
Black and white mounted print of people looking up at President Theodore Roosevelt speaking on a balcony, with handwritten annotation, "Pres. R. Speaking From Hotel Veranda."
Black and white mounted print of people on horseback riding away from the camera; railroad tracks are visible in the foreground. Handwritten annotation "President Roosevelt and party setting out to see Canon."