There are 3 former lookout sites registered in Wisconsin. The most recently registered former lookout site is Grantsburg Lookout Site (US 1951, WI 3), added on March 25, 2020.
| Lookout Name | NHLR Registry Number | Available for Rental | Visit Reports |
| Carter Lookout Site | US 1742, WI 1 | ||
| Grantsburg Lookout Site | US 1951, WI 3 | ||
| Rat Lake Lookout Site | US 1743, WI 2 |