Craters Of The Moon National Monument and Preserve Caves

Caves at Craters of the Moon represent Pleistocene or Holocene basaltic lava tubes. The number of documented caves currently exceeds 170, and with further exploration and inventory a realistic estimate of the number might exceed 600. Along the Great Rift, the volcanic rift zone in which the lava fields formed, are additional cave features termed "fissure caves". These fissure caves are present in much fewer numbers than the lava tube caves. Some of these fissures are quite sizeable, including one particular fissure that may be passable to a depth of 650 feet (200 meters) from the surface.

$104.96 25% off
Built for muddy switchbacks, slick descents, and rutty ridgelines, the Topo Athletic Hydroventure 2 Trail Running Shoe...
Price subject to change | Available through
Featured Park
Two deserts, two large ecosystems whose characteristics are determined primarily by elevation, come together at Joshua Tree National Park. The Colorado Desert encompasses the eastern part of the park and features natural gardens of creosote bush...
Featured Wildlife
Maine ocean islands provide the only nesting sites for Atlantic puffins in the United States. Eastern Egg Rock in the midcoast region, Seal Island and Matinicus Rock at the mouth of Penobscot Bay, and Machias Seal Island and Petit Manan Island off the downeast coast provide habitat for more than 4,000 puffins each summer.