Wilderness Landscape & Natural Heritage
Malpaís de la Arena National Monument, located in the northwestern part of New Mexico near Grants, encompasses approximately 29,000 acres of one of the Southwest's most extensive and youngest lava flows, formed around 10,000 years ago. The term "Malpaís" means "badlands" in Spanish, aptly describing the virtually impassable terrain of jagged basalt lava, scattered cinder cones, and rough volcanic rock features. This striking volcanic landscape contrasts with pockets of desert grasslands, pinon-juniper woodlands, and unique riparian areas along streams cutting through the badlands. The monument preserves an exceptional example of the Rio Grande Rift's volcanic activity and its resulting ecosystems. Archaeological evidence points to Native American groups using this landscape for centuries. For outdoor enthusiasts, Malpaís de la Arena offers challenging hiking over rugged lava terrain, excellent wildlife viewing including mule deer, coyotes, and diverse birds, and opportunities for photography of dramatic volcanic features. Unlike larger, more developed parks, it maintains a primitive, remote feeling with limited established trails and no visitor facilities within the monument boundaries. Nearby, visitors can access ranger information and services in Grants, New Mexico. Malpaís de la Arena attracts adventurers looking to explore a stark, wild volcanic environment with solitude and fascination for geology, desert flora and fauna, and expansive vistas. Its combination of rugged terrain and archaeological significance makes it a unique protected place within the National Landscape Conservation System managed by the Bureau of Land Management.
