National Geologic Map Database
Product Description Page
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Title: The geologic story of Great Falls and the Potomac River Gorge
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Author(s): Reed, J.C., Sigafoos, R.S., and Fisher, G.W.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Bulletin 1471
- Publication Date: 1980
- Map Scale: 1:21,500
- Cross Section: Yes
- North Latitude: 39° 1' 1" N (39.0170)
- South Latitude: 38° 59' 13" N (38.9870)
- East Longitude: 77° 13' 30" W (-77.2250)
- West Longitude: 77° 16' 1" W (-77.2670)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.