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Primary view of Conroe Northeast Quadrangle
Geological Survey (U.S.)
1960
Primary view of Conroe Northeast Quadrangle
Geological Survey (U.S.)
1968
Primary view of Trinity East Quadrangle
Geological Survey (U.S.)
1962
Primary view of Trinity East Quadrangle
Geological Survey (U.S.)
1968
Primary view of Camilla Quadrangle
Geological Survey (U.S.)
1968
Primary view of Staley Quadrangle
Geological Survey (U.S.)
1962
Primary view of Camilla Quadrangle
Geological Survey (U.S.)
1962
Primary view of Oakhurst Quadrangle
Geological Survey (U.S.)
1962
Primary view of Bear Creek Quadrangle
Geological Survey (U.S.)
1960
Primary view of Carlisle Quadrangle
Geological Survey (U.S.)
1968
Primary view of Bear Creek Quadrangle
Geological Survey (U.S.)
1965
Primary view of Carlisle Quadrangle
Geological Survey (U.S.)
1962
Primary view of Coldspring Quadrangle
Geological Survey (U.S.)
1968
Primary view of Maynard Quadrangle
Geological Survey (U.S.)
1962
Primary view of Coldspring Quadrangle
Geological Survey (U.S.)
1962
Primary view of Stephen Creek Quadrangle
Geological Survey (U.S.)
1962
Primary view of Stephen Creek Quadrangle
Geological Survey (U.S.)
1969
Primary view of Blanchard Quadrangle
Geological Survey (U.S.)
1969
Primary view of Blanchard Quadrangle
Geological Survey (U.S.)
1961
Primary view of Livingston Quadrangle
Geological Survey (U.S.)
1960
Primary view of Livingston Quadrangle
Geological Survey (U.S.)
1968
Primary view of Rayburn Quadrangle
Geological Survey (U.S.)
1967
Primary view of Beaumont
United States. Army. Corps of Engineers.
1964
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