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| Publication type | Report |
|---|---|
| Publication Subtype | USGS Unnumbered Series |
| Title | The river and the rocks : the geologic story of Great Falls and the Potomac River Gorge |
| DOI | 10.3133/70007449 |
| Year Published | 1970 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | v., 46 p., ill. map, 24 cm. |