The Ice Caves are located on the northern edge of Billings County along the southern slope of a ridge capped by 30 feet of sandstone in the Sentinel Butte Formation. Large blocks of sandstone have become detached from the ridge cap and toppled down the slow, resting at various angles again one another, which has created the caves. Moisture inside the caves remains frozen into late spring or summer. On this trail you will follow a segment of the Maah Daah Hey Trail until you veer east, following the Ice Caves Trail. You will find yourself below large cliffs where the ice caves are all around. Be sure to get off your bike and explore these caves by foot.