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Primary view of Big Valley South Quadrangle
Geological Survey (U.S.)
1980
Primary view of Big Valley North Quadrangle
Geological Survey (U.S.)
1980
Primary view of Richland Springs Quadrangle
Geological Survey (U.S.)
1980
Primary view of Hall Quadrangle
Geological Survey (U.S.)
1980
Primary view of Blucher Mountain Quadrangle
Geological Survey (U.S.)
1980
Primary view of Blucher Mountain Quadrangle
Geological Survey (U.S.)
1980
Primary view of San Saba Peak Quadrangle
Geological Survey (U.S.)
1980
Primary view of Regency Quadrangle
Geological Survey (U.S.)
1980
Primary view of Bowser Quadrangle
Geological Survey (U.S.)
1980
Primary view of Regency Quadrangle
Geological Survey (U.S.)
1980
Primary view of Bowser Quadrangle
Geological Survey (U.S.)
1980
Primary view of San Saba Peak Quadrangle
Geological Survey (U.S.)
1980
Primary view of Elm Grove Quadrangle
Geological Survey (U.S.)
1980
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