Public Sites
| State | County | Name |
|---|---|---|
| Iowa | Butler | Blackmun Prairie |
| Iowa | Sac | Blackhawk State Park |
| Iowa | Des Moines | Blackhawk Bottoms |
| Iowa | Des Moines | Blackhawk Bottoms |
| West Virginia | Pocahontas | Black Mountain |
| Iowa | Allamakee | Black Hawk Point Wildlife Management Area |
| Iowa | Black Hawk | Black Hawk Park |
| Iowa | Black Hawk | Black Hawk Mitigation |
| Iowa | Sac | Black Hawk Marsh |
| Iowa | Sac | Black Hawk Lake Wildlife Management Area |
| Illinois | Rock Island | Black Hawk Forest |
| Iowa | Black Hawk | Black Hawk County |
| Iowa | Hamilton | Bjorkboda Marsh |
| Iowa | Clayton | Bixby State Preserve |
| Iowa | Ida | Bitter Creek @ Union Ave |
| Iowa | Emmet | Birge Lake State Game Management Area |
| Iowa | Cerro Gordo | Bird Hill State Preserve |
| Iowa | Polk | Bill Riley Trail Ridge |
| Iowa | Fayette | Bighorn Road - Mink Creek - Trout |
| Iowa | Howard | Bigalk Creek - Trout |
| Iowa | Wright | Big Wall Lake Wildlife Management Area |
| Michigan | Kalkaska | Big Twin Lake |
| Texas | Hardin | Big Thicket National Preserve |
| Minnesota | Big Stone | Big Stone NWR Visitor Center |
| Montana | Gallatin | Big Sky |