Crater Rings, Volcanic pit craters in Snake River Plain, Idaho, US.

Crater Rings consists of two symmetrical volcanic depressions located in Idaho's Snake River Plain with steeply sloped interior walls and visible layers of volcanic rock. The site features dramatic elevation changes that create a distinctive landscape shaped by ancient lava activity.

These volcanic crater basins formed less than two million years ago through lava activity and represent some of the most recent shield volcanoes in the Mountain Home region. The formations record the geological development of the Snake River Plain and its ongoing transformation.

The craters lie within the Morley Nelson Snake River Birds of Prey National Conservation Area, managed by the Bureau of Land Management, which designated the site a National Natural Landmark in 1980. The surrounding canyon country is known for one of the densest nesting populations of raptors in North America.

The craters sit on the summit of a shield volcano about eight miles northwest of Mountain Home, within the Morley Nelson Snake River Birds of Prey National Conservation Area, which the Bureau of Land Management owns. Approach from the east via Cinder Butte Road; other tracks may be impassable or not exist. Check current route conditions before setting out, as this is a remote site.

The eastern crater, about 3,000 feet across and 350 feet deep, is larger than the western one at 2,500 feet across and 300 feet deep. Geologists compare these former lava lakes to Halemaʻumaʻu on Kīlauea in Hawaii. The site lies within the Morley Nelson Snake River Birds of Prey National Conservation Area, managed by the Bureau of Land Management.