New Mexico

New Mexico Geography

The Great Plains of North America sloping east from the Rocky Mountains, cover New Mexico's eastern border with Texas. This elevated plateau area gradually blends with the large (and flat) treeless areas of western Oklahoma and Texas.


The Colorado Plateau, a series of flat lands, gorges, mountains and valleys, slices across the state's northwestern corner.

The tree-covered Rocky Mountains extend south into New Mexico; significant ranges include the Jemez, Sangre de Cristo, and Zuni. Along the southern reaches of New Mexico, the Black Range, and the rugged Guadeloupe, Mongollon, Sacramento and San Andres Mountains dominate the landscape.

The state's most dramatic feature, the White Sands National Monument is one of the world's great natural wonders.

Additional points-of interest include Carlsbad Caverns, the site of more than 100 caves, including Lechuguilla Cave - America's deepest at over 1,500 feet.

The Rio Grande, rising in southwestern Colorado, flows south through New Mexico, later forming the natural border between Mexico and Texas. Other rivers of size include the Canadian, Gila and Pecos.

For a detailed look at the topography of New Mexico, view this topographic map.

New Mexico Photographs

white sands new mexico

White Sands, New Mexico

New Mexico Cities, Counties & Area Codes

City County Area Code
Albuquerque Bernalillo 505
Reserve Catron 575
Roswell Chaves 575
Grants Cibola 505
Raton Colfax 575
Clovis Curry 575
Fort Sumner De Baca 575
Las Cruces Dona Ana 575
Carlsbad Eddy 575
Silver City Grant 575
Santa Rosa Guadalupe 575
Roy Harding 575
Lordsburg Hidalgo 575
Hobbs Lea 575
Ruidoso Lincoln 575
Los Alamos Los Alamos 505
Deming Luna 575
Gallup McKinley 505
Mora Mora 575
Alamogordo Otero 575
Tucumcari Quay 575
Espanola Rio Arriba 505
Portales Roosevelt 575
Farmington San Juan 505
Las Vegas San Miguel 505
Rio Rancho Sandoval 505
Santa Fe Santa Fe 505
Truth or Consequences Sierra 575
Socorro Socorro 575
Taos Taos 575
Moriarty Torrance 505
Clayton Union 575
Los Lunas Valencia 505