Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Muir (Mont.) | 43 | 0 | |
| Mud Creek (Minn.) | 2 | 0 | |
| Mud Bay (Wash.) | 1 | 0 | |
| Mud Bay (B.C.) | 2 | 0 | |
| Mt.Vernon (Wash.) | 1 | 0 | |
| Mt. View (Or.) | 0 | 0 | |
| Mt. Vernon (Wash.) | 0 | 0 | |
| Mt Vernon (Wash.) | 10 | 0 | |
| Mt. Vernon (S.D.) | 0 | 0 | |
| Mt. Shasta (Calif.) | 2 | 0 |