Place
- Martin Dr2
- Mathews School2
- Maufrais St2
- Mc Lain Ave2
- McLain Ave2
- Mercedes Settling Basin2
- Mile 1 E2
- Mile 2 1/22
- Mile 2 E2
- Mile 3 E2
- Mile 3 N2
- Military Highway of the Lower Rio Grande Valley2
- Montenegro Ests2
- Munoz Ave2
- Munoz Dr2
- Near Routes of Alonso de Leon Expeditions2
- Oakland Ave2
- Ohio Station Rd2
- Old Rio Rico Rd2
- Our Lady of Visitation Catholic Church2