Binary base map (BBM) files are vectorized graphics derived from U.S. Geological Survey (USGS) digital line graphs. BBM files can be imported directly into WhAEM2000 software and serve as the geographic basis for groundwater modeling. To find BBM data for a specific geographic area, click on the appropriate state below. A more detailed graphic of the state you selected will display. Alternatively, you can choose from an alphabetical text list of available states.

Alabama | Arizona | Arkansas | California (North) | California (South) | Colorado | Connecticut, Massachusetts, Rhode Island | Florida | Georgia | Idaho | Illinois | Indiana | Iowa | Kansas | Kentucky | Louisiana | Maine | Maryland, Delaware, Distr. of Columbia | Michigan (Lower Peninsula) | Michigan (Upper Peninsula) | Minnesota | Mississippi | Missouri | Montana | Nebraska | Nevada | New Hampshire, Vermont | New Jersey | New Mexico | New York | North Carolina | North Dakota | Ohio | Oklahoma | Oregon | Pennsylvania | South Carolina | South Dakota | Tennessee | Texas (West) | Texas (East) | Utah | Virginia | Washington | West Virginia | Wisconsin | Wyoming