Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Piedmont and Blue Ridge carbonate-rock aquifers

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: February 10, 2026 | Last Modified: 2020-11-17T00:00:00Z
This data set represents the extent of the Piedmont and Blue Ridge carbonate-rock aquifers in the states of New Jersey, Pennsylvania, and Maryland.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov