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Primary view of Ethel Quadrangle
Geological Survey (U.S.)
1982
Primary view of Collinsville Quadrangle
Geological Survey (U.S.)
1982
Primary view of Whitesboro Quadrangle
Geological Survey (U.S.)
1982
Primary view of Pottsboro Quadrangle
Geological Survey (U.S.)
1982
Primary view of Gordonville Quadrangle
Geological Survey (U.S.)
1982
Primary view of Dexter Quadrangle
Geological Survey (U.S.)
1982
Primary view of Whitewright Quadrangle
Geological Survey (U.S.)
1984
Primary view of Ambrose Quadrangle
Geological Survey (U.S.)
1984
Primary view of Sadler Quadrangle
Geological Survey (U.S.)
1982
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