What you need to know:
Length - The Map says 3.6 but is closer to 3.4
Water - Unreliable. it would be best to get your water at horsethief lake.
Water crossings - None
Camping - Black Hills National Forest Camping rules - Setting up your own campsite away from developed fee sites is allowed on most of the Forest for a maximum of 14 days in any 60-day period. However, around developed reservoirs and campgrounds, camping is allowed only in designated areas. General rule: Camp 100 feet away from any road, stream, or trail and 1/2 mile away from developed sites.
Trail condition - The trail is well defined and easy to follow. fairly flat except for a long descent at the beginning.