GROUND WATER Part 3
Description
Rain water seeps beneath the earth's surface to form ground water. Diagrams the formation of artesian wells, hot springs, and geysers. "Old Faithful" in Yellowstone Park erupts. Describes the action of acid ground water in forming underground caverns, natural bridges, and petrified forests. Shows the Carlsbad Caverns, New Mexico; Mammoth Cave, Kentucky; Natural Bridge, Virginia; and the petrified forests of Arizona.
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Records of the Work Projects Administration
Series
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