There are 2 former lookout sites registered in Maryland. The most recently registered former lookout site is Foxville Fire Tower Site (US 1626, MD 2), added on November 27, 2016.
| Lookout Name | NHLR Registry Number | Available for Rental | Visit Reports |
| Foxville Fire Tower Site | US 1626, MD 2 | ||
| Hamburg Road Fire Tower Site | US 1586, MD 1 |