Spatial Coverage
- Las Vegas (N.M.)1
- Lea County.1
- Lincoln County1
- Luna County (N.M.)1
- Magdalena1
- Magdalena (N.M.)1
- Maxwell Land Grant (N.M. and Colo.)1
- Mexico, North1
- Mexico, North.1
- Midland Basin (Tex. and N.M.)1
- Midland Basin.1
- Montana1
- Montana.1
- Montezuma1
- Montezuma (N.M.)1
- Mora County (N.M.)1
- Navajo Indian Reservation1
- New Meixo1
- Oldham County1
- Oldham County.1
