| Maryland Veterans Museum at Patriot Park | 11000 Crain Highway
Newburg, MD 20664 | (301) 932-1900 | |
| Masons Famous Lobster Rolls | 3716 Crain Hwy
Waldorf, MD 20602 | | |
| Master Suites Hotel - Waldorf | 2228 Old Washington Rd
Waldorf, MD 20601 | (301) 870-5500 | |
| Mattawoman Community Center | 10145 Berry Rd.
Waldorf, MD 20603 | (301) 645-6865 | |
| Mattawoman Creek Art Center | 5565 Upham PlaceSmallwood State Park
Marbury, MD 20658 | (301) 743-5159 | |
| Mattawoman Middle School | 10145 Berry Road
Waldorf, MD 20603 | | |
| Mattawoman State Natural Environmental Area | Chicamuxen Road (Route 224)
Indian Head, MD 20640 | (301) 888-1410 | |
| Mattawoman-Beantown Park & Ride (903) | Mattawoman-Beantown Road
Waldorf, MD 20602 | | |
| Matthew Henson Middle School | 3535 Livingston Road
Indian Head, MD 20640 | | |
| Mattingly Park Ramp | Mattingly Ave
Indian Head, MD 20640 | (301) 743-5511 | |
| Maurice J. McDonough High School | 7165 Marshall Corner Road
Pomfret, MD 20675 | | |
| Maxwell Hall Park | 6680 Maxwell Drive
Hughesville, MD Hughesville | | |
| Maxwell Hall Park | 6680 Maxwell Drive
Hughesville, MD Hughesville | | |
| McDonald's | 6385 Crain Highway
La Plata, MD 20646 | (301) 934-3600 | |
| McDonald's | 2065 Crain HighwayPinefield
Waldorf, MD 20601 | (301) 870-8024 | |
| McDonald's | 11025 Mall Circle
Waldorf, MD 20603 | (301) 705-5689 | |
| McDonald's | 109 Drury Lane
La Plata, MD 20646 | (301) 934-6851 | |
| McDonald's | 3050 Marshall Hall Road
Bryans Road, MD 20616 | (301) 375-9669 | |
| McDonald's | 3300 Leonardtown Road
Waldorf, MD 20601 | (301) 638-3682 | |
| McDonald's | 3000 Crain Highway
Waldorf, MD 20601 | (301) 638-9852 | |