MapThe Chesapeake Bay watershed : 64,000 square miles of land, w... Also covers watersheds of tributary rivers (including the Susquehanna) and adjacent regions of the Middle Atlantic States. State boundaries and watershed outline added. Includes bar-code. Available also through the Library of Congress Web site as a raster image.
- Contributor: Geological Survey (U.S.) - Chesapeake Bay Program (U.S.)