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Groundwater

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(11:12) b/w, sound
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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New Deal Maps

Check out our latest map and guide to the work of the New Deal in Washington, D.C. It includes 500 New Deal sites in the District alone, highlighting 34 notable sites, and includes an inset map of the area around the National Mall which can be used for self-guided walking tours.

Take a look at our previous guides, equally comprehensive, covering key New Deal sites in San Francisco and New York City.

New Deal Maps

Check out our latest map and guide to the work of the New Deal in Washington, D.C. It includes 500 New Deal sites in the District alone, highlighting 34 notable sites, and includes an inset map of the area around the National Mall which can be used for self-guided walking tours.

Take a look at our previous guides, equally comprehensive, covering key New Deal sites in San Francisco and New York City.