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A Failing 1500-S drill rig on location at Simpson core test 17. Barrow district, Northern Alaska region, Alaska. September 7, 1949. (Photograph by U.S. Navy.) Published in U.S. Geological Survey Professional Paper 301, Figure 65. 1958.
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Oblique aerial of mountains between Warm Springs and Sitka, Baranof Island. Baranof district, Southeastern Alaska region, Alaska. 1938.
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Album caption and index card: Copper Mountain Bar showing Geological Survey camp from lower slopes of Mt. Eielson. Mount McKinley National Park. Kantishna district, Yukon region, Alaska. 1931.
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Album caption: Same title as No. 146. (rjc00146, Panorama from south of Thorofare Pass of country from head of Thorofare River past Mt. Eielson to Copper Mountain Bar. 1931. Kantishna, Yukon.) Index card unavailable.
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Mountains between Warm Springs and Sitka, Baranof Island. Baranof district, Southeastern Alaska region, Alaska. 1938.
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Shenandoah National Park, Virginia. Mud-lump breccia in the outcrop along the Appalachian Trail at the north end of the base of Little Stony Man Cliffs. Lumps of hard red argillite stand out as knots on the weathered surface. Light-gray streaks are irregular wisps of silvery phyllite. Matrix is fine- grained schistose greenstone. Figure 13, U.S. Geological Survey Bulletin 1265.
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Shenandoah National Park, Virginia. Sawed slab of amygdaloid breccia. Slab is from the outcrop on the south side of the road about 500 feet southeast of Big Meadows Lodge. The angular blocks are probably pieces of frothy lava crust that formed at the top of the flow. The crust was broken by continued movement of the still-molten lava beneath, and jumbled pieces were rafted along and were eventually frozen in place when the flow came to rest and solidified. During later metamorphism the amygdules and some of the interstices between the blocks were filled with white quartz and yellow-green epidote. Locally, part of the rock has been altered to epidosite, a fine- grained light-green aggregate of epidote and quartz....
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Beaching barge with palletized cargo during Barex '47. Barrow district, Northern Alaska region, Alaska. 1947. (Photograph by U.S. Navy.) Published in U.S. Geological Survey Professional Paper 301, Figure 29. 1958.
map background search result map search result map Glacier Bay National Park and Preserve, Alaska. End of Reid Glacier, viewed from 649-foot elevation west of it. 1936. Glacier Bay National Park and Preserve, Alaska. Rendu Glacier, viewed from near Romer Glacier. 1936. Glacier Bay National Park and Preserve, Alaska. Up inlet from north to Garford island, probably toward Casement Glacier. 1936. Glacier Bay National Park and Preserve, Alaska. Six different views about head of Muir Inlet. 1941. Glacier Bay National Park and Preserve, Alaska. Six different views about head of Muir Inlet. 1941. Glacier Bay National Park and Preserve, Alaska. East side of the face of Muir Glacier. 1941. Shenandoah National Park, Virginia. Mud-lump breccia in the outcrop along the Appalachian Trail at the north end of the base of Little Stony Man Cliffs. Relay camp at Tokat River, Divide mountains in the background. Kantishna district, Yukon region, Alaska. 1931. Geological Survey camp at Copper Mountain Bar. Kantishna district, Yukon region, Alaska. 1931. Copper Mountain Bar showing Geological Survey camp. Kantishna district, Yukon region, Alaska. 1931. Mount McKinley from near head of Copper Mountain Bar. Kantishna district, Yukon region, Alaska. 1931. Abe Shalitt under ice block on Muldrow Glacier. Kantishna district, Yukon region, Alaska. 1931. Fording McKinley for of the Kantishna River just below Mudlow Glacier. Kantishna district, Yukon region, Alaska. 1931. Glacier Bay National Park and Preserve, Alaska. Up inlet from north to Garford island, probably toward Casement Glacier. 1936. Shenandoah National Park, Virginia. Mud-lump breccia in the outcrop along the Appalachian Trail at the north end of the base of Little Stony Man Cliffs. Glacier Bay National Park and Preserve, Alaska. End of Reid Glacier, viewed from 649-foot elevation west of it. 1936. Glacier Bay National Park and Preserve, Alaska. Rendu Glacier, viewed from near Romer Glacier. 1936. Glacier Bay National Park and Preserve, Alaska. Six different views about head of Muir Inlet. 1941. Glacier Bay National Park and Preserve, Alaska. Six different views about head of Muir Inlet. 1941. Glacier Bay National Park and Preserve, Alaska. East side of the face of Muir Glacier. 1941. Relay camp at Tokat River, Divide mountains in the background. Kantishna district, Yukon region, Alaska. 1931. Geological Survey camp at Copper Mountain Bar. Kantishna district, Yukon region, Alaska. 1931. Copper Mountain Bar showing Geological Survey camp. Kantishna district, Yukon region, Alaska. 1931. Mount McKinley from near head of Copper Mountain Bar. Kantishna district, Yukon region, Alaska. 1931. Abe Shalitt under ice block on Muldrow Glacier. Kantishna district, Yukon region, Alaska. 1931. Fording McKinley for of the Kantishna River just below Mudlow Glacier. Kantishna district, Yukon region, Alaska. 1931.