Valles Caldera National Preserve

San Antonio Cabin often housed cowboys when the preserve was privately-owned and operating as a ranch.
About 1.2 million years ago, a spectacular volcanic eruption created a 14-mile-wide circular depression in the earth now known as Valles Caldera. The preserve is known for its huge mountain meadows, abundant wildlife, and meandering streams. The area also preserves the homeland of ancestral native peoples and embraces a rich ranching history.
Map showing location of park.
Trails crew digging rocks out of a new section of trail.
Valles Caldera at 25 Celebration Coming July 25-27
On Friday, July 25, 2025, Valles Caldera National Preserve turns 25. To celebrate this public land milestone, we invite everyone to three days of special programs and evening hours in their national preserve.
Scattered clouds over landscape view of winding river and brown grasslands
Photo by NPS Photo
A coyote walks across a frozen stream in a snowy valley.
Photo by NPS/Corey Lycopolus
San Antonio cabin under a mostly cloudy sky
Photo by NPS Photo
Two bull elk fighting.
Photo by NPS Photo / Dan Williams
A narrow stream meanders through a montane grassland.
Photo by NPS/Irene Owsley