The hike up to the cave is steep. Hike uphill until you come to a large opening in the mountain. Flashlights aren’t required, as the cave is only about 25 ft. deep.
The naming of the cave comes from a story of two men who were caught in a bad storm. Upon hiking, these two guys were able to find the cave. One of them commented to the other, “This cave could hold about 40 horses.” Thus the name 40 horse cave.
Follow Ammon road South to Wolverine Road. Take a right turn. Follow until the creek runs under the road. Park there, and hike up the trail. The cave is located on the right side of road.