There are 2 former lookout sites registered in Missouri. The most recently registered former lookout site is Gypsy Lookout Tower Site (US 1594, MO 2), added on March 16, 2015.
| Lookout Name | NHLR Registry Number | Available for Rental | Visit Reports |
| Grassy Lookout Tower Site | US 1593, MO 1 | 1 report | |
| Gypsy Lookout Tower Site | US 1594, MO 2 | 1 report |