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.

Hydrogeologic Areas of the Southwest Principal Aquifer (SWPA) study

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: July 15, 2025 | Last Modified: 20201117
This raster dataset represents the boundaries of the hydrogeologic areas of the Southwest Principal Aquifer (SWPA) study of the National Water Quality Assessment (NAWQA) program. It is a compilation of the pre-existing Hydrogeologic Areas of the Southwest Ground-Water Resources Project, with additional data from the Central and Coastal basins of California, Northern New Mexico Rio Grande Valley, and South Central Colorado San Luis Valley.

Find Related Datasets

Click any tag below to search for similar datasets

Complete Metadata

@id http://datainventory.doi.gov/id/dataset/ac53c86fa46451ff9465b014cbad96bc
bureauCode 
[
  "010:12"
]
identifier USGS:3f8df72b-7efc-4821-a64d-35aa3b8a427a
spatial -125.047253,29.27738,-104.478499,44.763995
theme 
[
  "geospatial"
]

data.gov

An official website of the GSA's Technology Transformation Services

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