Hidden Horse has 6 campsites, one of which is designed to be accessible for people with disabilities. Each site has four 12'x12' corral stalls, but there are no watering troughs, so campers must bring their own buckets.
From Callahan, take the Callahan-Cecilville Rd for approx. 11 miles. At about a 1/2 mile below the summit, the turn-off to the campground will be on your left.