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Colorado National Monument, Colorado. Fruita Canyon, looking northeast from a point on Rim Rock Drive above the head of the canyon. Dark Proterozoic rocks floor the canyon, above which are the slopes of the red Chinle Formation and the cliffs of Wingate Sandstone capped by the lower resistant beds of the Kayenta Formation. Beyond the Grand Valley are the dark Book Cliffs and the more distant, light-colored Roan Cliffs. May 28, 1970. Figure 45, U.S. Geological Survey Bulletin 1508.
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Colorado National Monument, Colorado. Rock formation. U.S. Geological and Geographical Survey of the Territories (Hayden Survey).
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Sequoia National Park, California. Moro Rock, viewed from Generals Highway. Photograph by J.C. Patten, 1935.
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Lassen Volcanic National Park, California. Bumpass Hell, looking north 100 degrees west along the western fault. The dark rocks at the extreme left are basalt. The others are dacite. Bumpass Hell is 500 feet long and 200 feet wide, with numerous pools, fumaroles, and hot springs. The Largest spring seen along the eastern fault is on the right. The line between the dark basalt and the white altered dacite is a fault also and has considerable vigorous steam spring action. August 13, 1921.
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Album caption and index card: Few raft parties pass here without stopping: between 1963, when Glen Canyon Dam was completed, and August 1972, an estimated 50,000 people had visited this site. Saltcedar, sandbar willow, and seep willow grow densely at the mouth of Deer Creek in spite of the heavy human impact. The large blocks and boulders have not changed noticeably but changes involving some of the smaller rocks along the beach are evident. The large sand deposit on the left in the old photograph is gone (see photo no. 61). Grand Canyon National Park. Coconino County, Arizona. August 24, 1972. Published as Figure 56-B in U.S. Geological Survey. Professional Paper 1132. 1980.
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Chimney Rock National Historic Site, Nebraska. Chimney Rock is a landmark along the old Oregon Trail that followed the Platte River. May 1951.
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Devils Tower, viewed from the southeast. Igneous rock formations seen to the northwest. Devils Tower National Monument, Wyoming. 1932.
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Contact between Mancos shale and igneous rock, at head of Harts Draw, Abajo Mountains. San Juan County, Utah. 1915 (Photo by M.R. Thorpe)
    map background search result map search result map Bumpass Hell, looking north 100 degrees west along the western fault. Lassen Volcanic National Park, California. 1921. Ruins in Hovenweep National Monument on rim of canyon tributary to McElmo. Montezuma County, Colorado. 1929. Rock formation. Colorado National Monument, Colorado. No Date. Fruita Canyon, looking northeast from a point on Rim Rock Drive above the head of the canyon. Colorado National Monument, Colorado. 1970. Hospital Rock. Sequoia National Park, California. Circa 1935. Tourists on the summit of Moro Rock. Sequoia National Park, California. 1935. Moro Rock, viewed from Generals Highway. Sequoia National Park, California. 1935. Tunnel Rock. Sequoia National Park, California. Circa 1935. Major unconformities involving Vishnu Schist. Grand Canyon National Park, Coconino County, Arizona. No date. Spanish inscriptions and petrogylphs on Inscription Rock. El Morro National Monument, New Mexico. 1906. Chimney Rock, viewed from the southeast. Catoctin Mountain Park, Maryland. No Date. Saltcedar, sandbar willow, and seep willow grow densey at the mouth of Deer Creek. Coconino County, Arizona. 1972. Spanish inscriptions and petrogylphs on Inscription Rock. El Morro National Monument, New Mexico. 1906. Chimney Rock, viewed from the southeast. Catoctin Mountain Park, Maryland. No Date. Rock formation. Colorado National Monument, Colorado. No Date. Fruita Canyon, looking northeast from a point on Rim Rock Drive above the head of the canyon. Colorado National Monument, Colorado. 1970. Bumpass Hell, looking north 100 degrees west along the western fault. Lassen Volcanic National Park, California. 1921. Ruins in Hovenweep National Monument on rim of canyon tributary to McElmo. Montezuma County, Colorado. 1929. Hospital Rock. Sequoia National Park, California. Circa 1935. Tourists on the summit of Moro Rock. Sequoia National Park, California. 1935. Moro Rock, viewed from Generals Highway. Sequoia National Park, California. 1935. Tunnel Rock. Sequoia National Park, California. Circa 1935. Major unconformities involving Vishnu Schist. Grand Canyon National Park, Coconino County, Arizona. No date. Saltcedar, sandbar willow, and seep willow grow densey at the mouth of Deer Creek. Coconino County, Arizona. 1972.