- Martinique Maps (1)
- Maryland Maps (3)
- Mecklenburg (Germany : State) Maps Early Works to 1800 (1)
- Mediterranean Sea Maps Early Works to 1800 (1)
- Meridians (Geodesy) (1)
- Meteorological Stations (1)
- Mexico (2)
- Mexico Illustrations (1)
- Mexico Maps (1)
- Mexico. Treaties, Etc. United States, 1853 December 30 Maps (1)
- Michigan (2)
- Michigan Boundaries Indiana Maps (1)
- Michigan Boundaries Ohio Maps (1)
- Michigan Maps (5)
- Middle East (1)
- Middle East Maps (1)
- Middle East Maps Early Works to 1800 (1)
- Middle West Administrative and Political Divisions Maps (1)
- Middle West Maps (9)
- Military Bases (6)
