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The Colorado River in the Grand Canyon. A side-canyon of the Grand Canyon. The central part of the Grand Canyon, with Hermit Rapid in sight. The central part of the Grand Canyon. The Grand Canyon shrouded in clouds. The North Rim of the Grand Canyon. Marble Gorge of the Grand Canyon, showing Nankoweap delta in the lower portion of the photograph. Marble Gorge of the Grand Canyon, showing Nankoweap delta in the lower portion of the photograph. Marble Gorge of the Grand Canyon, showing Nankoweap in lower left. Marble Gorge of the Grand Canyon, showing Tatahatso and Small Points, Buck Farm and Saddle Canyons, and President Harding Rapid. A private boat running Hance Rapid. Cliff Palace dwellings from Sun Temple. Remnants of dwellings along Cliff Canyon. Cliff Palace dwellings from Sun Point. Navajo dwellings with neighbors above. Square Tower House dwellings. Navajo Canyon with a light dusting of snow. Square Tower House dwellings. Spruce Tree House dwellings with roofed kiva. Spruce Tree House dwellings. An aerial view of the Rocky Mountains near Denver, CO. Early put-in at Lee's Ferry on the Colorado River through the Grand Canyon. Hance Rapid in winter. The sun breaks through the clouds to illuminate the river. The river's edge as the water recedes through the usual daily fluctuation in water level. View of the Inner Gorge from the Tonto Plateau. Volcanic formations on the banks of the Colorado River below Lava Falls. Riffles in the Colorado River. A private raft nestled in a river-level cave in Marble Gorge. Private rafters overlooking the Unkar Delta.

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