U. S. GEOLOGICAL SURVEY EIGHTEENTH ANNUAL REPORT PART II PL. XXIV ROUND MOUNTAIN, UVALDE COUNTY, TEXAS.Type of canyon wall of the Edwards Plateau with talus slope at base.

U. S. GEOLOGICAL SURVEY EIGHTEENTH ANNUAL REPORT PART II PL. XXIV
ROUND MOUNTAIN, UVALDE COUNTY, TEXAS.Type of canyon wall of the Edwards Plateau with talus slope at base.

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GEOLOGY OF THE EDWARDS PLATEAU AND RIO GRANDE PLAIN ADJACENT TO AUSTIN AND SAN ANTONIO, TEXAS, WITH REFERENCE TO THE OCCURRENCE OF UNDERGROUND WATERS.
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