Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Barron County Fairgrounds | Park | 348 | Barron | 45 30 49 N | 091 44 12 W |
| Barron County Park | Park | 326 | Barron | 45 17 58 N | 091 37 02 W |
| Barron County Park | Park | 405 | Barron | 45 37 51 N | 091 55 53 W |
| Barton Park | Park | 287 | Washington | 43 26 48 N | 088 10 56 W |
| Baskerville Park | Park | 274 | Dane | 43 06 26 N | 089 28 50 W |
| Bass Hollow County Recreation Area | Park | 354 | Juneau | 43 40 39 N | 090 01 28 W |
| Bass Hollow State Natural Area | Park | 44 | Juneau | 43 40 59 N | 090 01 29 W |
| Bass Lake Fen State Natural Area | Park | 44 | Waushara | 44 00 20 N | 089 16 54 W |
| Bass Lake Preserve State Natural Area | Park | | Iron | 45 59 57 N | 090 01 23 W |
| Bastile Lake State Natural Area | Park | 46 | Forest | 45 49 35 N | 088 44 40 W |
| Battle Bluff Prairie State Natural Area | Park | 43 | Vernon | 43 27 23 N | 091 12 02 W |
| Bauer-Brockway Barrens State Natural Area | Park | 44 | Jackson | 44 17 48 N | 090 44 53 W |
| Bauman Park | Park | 228 | Winnebago | 44 01 55 N | 088 33 50 W |
| Baxter's Hollow State Natural Area | Park | | Sauk | 43 24 13 N | 089 48 51 W |
| Bay Beach Park | Park | 177 | Brown | 44 31 57 N | 087 58 48 W |
| Bayfield Historic District | Park | 194 | Bayfield | 46 48 40 N | 090 48 57 W |
| Bayshore County Park | Park | 213 | Brown | 44 38 12 N | 087 47 47 W |
| Bayview Park | Park | 179 | Brown | 44 31 23 N | 087 59 30 W |
| Bayview Park | Park | 177 | Door | 44 49 51 N | 087 23 04 W |
| Bayview Park | Park | 180 | Milwaukee | 42 59 05 N | 087 51 57 W |
| Bean Brook State Wildlife Management Area | Park | 351 | Washburn | 45 56 01 N | 091 35 45 W |
| Bean Lake State Natural Area | Park | 255 | Jefferson | 43 03 35 N | 088 56 31 W |
| Bear Caves State Natural Area | Park | 45 | Langlade | 45 13 42 N | 088 46 11 W |
| Bear Creek Sedge Meadow State Natural Area | Park | 225 | Richland | 43 16 48 N | 090 12 38 W |
| Bear Creek Waterfowl Area | Park | 386 | Taylor | 45 13 07 N | 090 43 51 W |
| Bear Lake Sedge Meadow State Natural Area | Park | 373 | Barron | 45 36 43 N | 091 48 37 W |
| Bear Lake State Public Fishery Area | Park | 374 | Washburn | 45 38 53 N | 091 51 56 W |
| Bear Point County Park | Park | 210 | Marinette | 45 20 29 N | 087 50 39 W |
| Beaser Park | Park | 208 | Ashland | 46 34 48 N | 090 53 40 W |
| Beaumont Field | Park | 231 | Racine | 42 41 00 N | 088 16 22 W |