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Primary view of Floresville Quadrangle
Geological Survey (U.S.)
1973
Primary view of Floresville Quadrangle
Geological Survey (U.S.)
1975
Primary view of Losoya Quadrangle
United States. Army. Corps of Engineers.
1975
Primary view of Three Oaks Quadrangle
Geological Survey (U.S.)
1979
Primary view of Leal Quadrangle
Geological Survey (U.S.)
1971
Primary view of La Vernia Southwest Quadrangle
United States. Army. Corps of Engineers.
1975
Primary view of Elmendorf Quadrangle
Geological Survey (U.S.)
1975
Primary view of New Berlin Quadrangle
United States. Army. Corps of Engineers.
1979
Primary view of Saspamco Quadrangle
Geological Survey (U.S.)
1973
Primary view of Saint Hedwig Quadrangle
United States. Army. Corps of Engineers.
1975
Primary view of Saspamco Quadrangle
United States. Army. Corps of Engineers.
1975
Primary view of Seguin
Geological Survey (U.S.)
1976
Primary view of Seguin
Geological Survey (U.S.)
1973
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