Grand Canyon National Park archeologist monitoring archeological resources along the Colorado River |
Bighorn sheep habituated to river traffic - Grand Canyon National Park |
Beach camp on the Colorado River - Grand Canyon National Park |
Administrative Use - Short-haul rescue, Crystal Rapid, Colorado River, Grand Canyon National Park |
16 concessioners are authorized under contract with the National Park Service to provide commercially guided trips on the Colorado River through Grand Canyon National Park |
Colorado River river running - Grand Canyon National Park |
Social trailing at Nankoweap - Grand Canyon National Park |
Recreational use on the Colorado River - Grand Canyon National Park |
Scenic view from Pima Point - Grand Canyon National Park |