U.S. Fish and Wildlife Service
Coastal Barrier Resources System
Ecological Services

Official CBRS Maps

The Coastal Barrier Resources Act (CBRA) of 1982 and subsequent amendments established the John H. Chafee Coastal Barrier Resources System (CBRS). The CBRS consists of relatively undeveloped coastal barriers and other areas located the Atlantic, Gulf of Mexico, Great Lakes, U.S. Virgin Islands, and Puerto Rico coasts. The CBRS currently includes 585 System Units, which comprise nearly 1.4 million acres of land and associated aquatic habitat. There are also 277 "Otherwise Protected Areas," a category of coastal barriers that are mostly already held for conservation and/or recreation purposes that include an additional 2.1 million acres of land and associated aquatic habitat. The CBRS units are identified and depicted on a series of maps entitled “John H. Chafee Coastal Barrier Resources System.” These maps are controlling and indicate which lands are affected by the CBRA. The maps are maintained by the Department of the Interior through the U.S. Fish and Wildlife Service.


Viewing an Official CBRS Map

An official CBRS map can be obtained through the CBRS Mapper by following these steps:

  • Locate the area of interest in the mapper
  • Click on the location of interest. A pop-up window will open providing information for the area.
  • In the pop-up window, click on the map link. A PDF of the official map will then open in a separate tab or download.

Alternatively, if the name or number of the CBRS unit is known, then the official CBRS maps can also be found in the table at: https://www.fws.gov/cbra/maps/cbrs/.


State Locator Maps

The below state locator maps show the locations of units in each state and may be helpful in determining a unit number.

Alabama Georgia Massachusetts New Jersey Ohio Texas
Connecticut Louisiana Michigan New York Great Lakes Puerto Rico Virgin Islands
Delaware Maine Minnesota New York Long Island Rhode Island Virginia
Florida Maryland Mississippi North Carolina South Carolina Wisconsin


Last updated: November 6, 2019