The Craters of the Moon National Monument & Preserve in Idaho is open to the public. It protects 21,618 hectares of volcanic formations.
The Monument is on the edge of one of the largest remaining pools of natural nighttime darkness in the lower 48 United States. Lava flows on the northern section of the Snake River Plain.
All facilities, roads and trails are now open, but the caves and the North Crater Flow Trail are closed. Learn more about the park here.