| |
| | USGS Open-File Report 01-188 |
 | | Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River Corridor, District of Columbia, Maryland, West Virginia, and Virginia |
 | | The Chesapeake and Ohio (CandO) Canal National Historical Park, herein called the CandO Canal, crosses three physiographic provinces along the Potomac River. |
 | | From Georgetown, District of Columbia, to Cumberland, Maryland, the CandO Canal provides an opportunity to examine the geologic history of the central Appalachian region. |
| pubs.usgs.gov /of/of01-188 (300 words) |
|