Places
- Marion County (W. Va.)11
- Marshall County (W. Va.)1
- Marshall County (W. Va.) -- History1
- Maryland 4
- Mississippi2
- Missouri1
- Monongahela River (W. Va. and Pa.)4
- Monongahela River Valley (W. Va. and Pa.)1
- Monongalia County (W. Va.)51
- Monongalia County (W. Va.) -- History1
- Monongalia County, Clinton District.1
- Monongalia County, W. Va. -- Buildings1
- Monroe County (W. Va.)2
- Moorefield (W. Va.)1
- Morgantown (W. Va.)[remove]188