Craters of the Moon National Monument and Preserve showcases one of the most expansive and accessible lava fields in the continental United States, offering unparalleled opportunities for hiking, caving, and exploring volcanic landscapes.
Located in south-central Idaho, Craters of the Moon National Monument and Preserve protects a vast region of volcanic terrain, formed by successive lava flows over thousands of years. The landscape is characterized by rugged basaltic lava fields, spatter cones, lava tubes, and cinder cones, giving visitors a glimpse into the dynamic forces that shaped the earth's surface. Ecologically, the area supports a mix of sagebrush steppe, mountain shrublands, and pockets of ponderosa pine, providing habitat for mule deer, coyotes, foxes, and a variety of bird species. Established in 1924 by President Calvin Coolidge, the monument serves both scientific and recreational purposes, preserving this rare volcanic region near the Great Rift volcanic zone. Key recreation opportunities include hiking a network of trails that traverse lava flows and volcanic features, exploring accessible lava tubes such as the Indian Tunnel, and backcountry camping across designated areas within the preserve. Notable landmarks include the Inferno Cone, a striking cinder cone with panoramic views, and the North Crater Flow, an immense expanse of pahoehoe and aa lava. Visitors are drawn to the monument’s otherworldly landscape that looks nearly lunar, making it a unique destination for geology enthusiasts, photographers, and outdoor adventurers. The monument is co-managed by the National Park Service and the Bureau of Land Management, ensuring protection of its scientific values and wilderness qualities. Seasonal variations offer opportunities to experience the expansive open space and dark night skies, popular among stargazers. Whether hiking lava tube caves or camping under vast starry skies, Craters of the Moon delivers a rare volcanic adventure in the northern Rockies.
Inferno Cone – a dormant volcanic cinder cone with panoramic vistas
Indian Tunnel Lava Tube – one of several accessible lava caves
North Crater Flow – vast fields of rugged pahoehoe and aa lava
Spatter Cones Loop Trail – scenic hike with unique volcanic features
A prominent volcanic cinder cone rising about 400 feet above the lava plain, accessible via a steep trail offering expansive views of the lava fields and surrounding mountains.
Natural tunnels formed by flowing lava, including the Indian Tunnel and Dewdrop Cave, which can be explored with careful preparation and proper lighting.
A geologic fissure extending through the monument marked by multiple volcanic vents and cinder cones, revealing the area's ongoing volcanic activity over the last 15,000 years.