LEFT: Timothy O'Sullivan, Green River Buttes, 1872  RIGHT: Mark Klett and Gordon Bushaw for the Rephotographic Survey Project, Castle Rock, Green River, WY, 1979
LEFT: Timothy O'Sullivan, Green River Buttes, 1872 RIGHT: Mark Klett and Gordon Bushaw for the Rephotographic Survey Project, Castle Rock, Green River, WY, 1979
LEFT: Timothy O'Sullivan, Comstock Mines Virginia City, 1868 RIGHT: Mark Klett for the Rephotographic Survey Project, Strip mines Virginia City, NV, 1979
LEFT: Timothy O'Sullivan, Comstock Mines Virginia City, 1868 RIGHT: Mark Klett for the Rephotographic Survey Project, Strip mines Virginia City, NV, 1979
LEFT: Timothy O'Sullivan, Green River Cañon, Great Bend, 1872  RIGHT: Mark Klett for the Rephotographic Survey Project, Flaming Gorge Reservoir, 1978
LEFT: Timothy O'Sullivan, Green River Cañon, Great Bend, 1872 RIGHT: Mark Klett for the Rephotographic Survey Project, Flaming Gorge Reservoir, 1978
LEFT: William Henry Jackson, Gateway Garden of the Gods, 1873 RIGHT: Mark Klett and JoAnn Verburg for the Rephotographic Survey Project, Gateway Garden of the Gods, 1977
LEFT: William Henry Jackson, Gateway Garden of the Gods, 1873 RIGHT: Mark Klett and JoAnn Verburg for the Rephotographic Survey Project, Gateway Garden of the Gods, 1977
LEFT: Timothy O'Sullivan, Historic Spanish record of the conquest, 1873  RIGHT: Mark Klett for the Rephotographic Survey Project, Spanish inscription, El Morro National Monument, NM, 1978
LEFT: Timothy O'Sullivan, Historic Spanish record of the conquest, 1873 RIGHT: Mark Klett for the Rephotographic Survey Project, Spanish inscription, El Morro National Monument, NM, 1978
LEFT: Timothy O'Sullivan, Quartz Mill near Virginia City, 1868  RIGHT: Mark Klett for the Rephotographic Survey Project, Site of the Gould and Curry Mine, Virginia City, NV, 1979
LEFT: Timothy O'Sullivan, Quartz Mill near Virginia City, 1868 RIGHT: Mark Klett for the Rephotographic Survey Project, Site of the Gould and Curry Mine, Virginia City, NV, 1979

Left Photo courtesy of the US Geological Survey

LEFT: J.K. Hillers, Cañon del Muerto from Mummy Cave, N.D. RIGHT: Mark Klett for the Rephotographic Survey Project, Canyon del Muerto, Canyon de Chelly National Monument, AZ, 1978
LEFT: J.K. Hillers, Cañon del Muerto from Mummy Cave, N.D. RIGHT: Mark Klett for the Rephotographic Survey Project, Canyon del Muerto, Canyon de Chelly National Monument, AZ, 1978
LEFT: Timothy O'Sullivan, Rock formations, Pyramid Lake, 1867 RIGHT: Mark Klett for the Rephotographic Survey Project, Pyramid Isle, Pyramid Lake, NV, 1979
LEFT: Timothy O'Sullivan, Rock formations, Pyramid Lake, 1867 RIGHT: Mark Klett for the Rephotographic Survey Project, Pyramid Isle, Pyramid Lake, NV, 1979
RSP statement.jpg
LEFT: Timothy O'Sullivan, Green River Buttes, 1872  RIGHT: Mark Klett and Gordon Bushaw for the Rephotographic Survey Project, Castle Rock, Green River, WY, 1979
LEFT: Timothy O'Sullivan, Comstock Mines Virginia City, 1868 RIGHT: Mark Klett for the Rephotographic Survey Project, Strip mines Virginia City, NV, 1979
LEFT: Timothy O'Sullivan, Green River Cañon, Great Bend, 1872  RIGHT: Mark Klett for the Rephotographic Survey Project, Flaming Gorge Reservoir, 1978
LEFT: William Henry Jackson, Gateway Garden of the Gods, 1873 RIGHT: Mark Klett and JoAnn Verburg for the Rephotographic Survey Project, Gateway Garden of the Gods, 1977
LEFT: Timothy O'Sullivan, Historic Spanish record of the conquest, 1873  RIGHT: Mark Klett for the Rephotographic Survey Project, Spanish inscription, El Morro National Monument, NM, 1978
LEFT: Timothy O'Sullivan, Quartz Mill near Virginia City, 1868  RIGHT: Mark Klett for the Rephotographic Survey Project, Site of the Gould and Curry Mine, Virginia City, NV, 1979
LEFT: J.K. Hillers, Cañon del Muerto from Mummy Cave, N.D. RIGHT: Mark Klett for the Rephotographic Survey Project, Canyon del Muerto, Canyon de Chelly National Monument, AZ, 1978
LEFT: Timothy O'Sullivan, Rock formations, Pyramid Lake, 1867 RIGHT: Mark Klett for the Rephotographic Survey Project, Pyramid Isle, Pyramid Lake, NV, 1979
RSP statement.jpg
LEFT: Timothy O'Sullivan, Green River Buttes, 1872 RIGHT: Mark Klett and Gordon Bushaw for the Rephotographic Survey Project, Castle Rock, Green River, WY, 1979
LEFT: Timothy O'Sullivan, Comstock Mines Virginia City, 1868 RIGHT: Mark Klett for the Rephotographic Survey Project, Strip mines Virginia City, NV, 1979
LEFT: Timothy O'Sullivan, Green River Cañon, Great Bend, 1872 RIGHT: Mark Klett for the Rephotographic Survey Project, Flaming Gorge Reservoir, 1978
LEFT: William Henry Jackson, Gateway Garden of the Gods, 1873 RIGHT: Mark Klett and JoAnn Verburg for the Rephotographic Survey Project, Gateway Garden of the Gods, 1977
LEFT: Timothy O'Sullivan, Historic Spanish record of the conquest, 1873 RIGHT: Mark Klett for the Rephotographic Survey Project, Spanish inscription, El Morro National Monument, NM, 1978
LEFT: Timothy O'Sullivan, Quartz Mill near Virginia City, 1868 RIGHT: Mark Klett for the Rephotographic Survey Project, Site of the Gould and Curry Mine, Virginia City, NV, 1979

Left Photo courtesy of the US Geological Survey

LEFT: J.K. Hillers, Cañon del Muerto from Mummy Cave, N.D. RIGHT: Mark Klett for the Rephotographic Survey Project, Canyon del Muerto, Canyon de Chelly National Monument, AZ, 1978
LEFT: Timothy O'Sullivan, Rock formations, Pyramid Lake, 1867 RIGHT: Mark Klett for the Rephotographic Survey Project, Pyramid Isle, Pyramid Lake, NV, 1979
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