Jerusalem Mills and Little Gunpowder Short Loop Trail
Trailhead Parking – Off Jerusalem Road on left going north south of Jericho Road
Trailhead Coordinates 39.46291, -76.39029
Approximate Time from BMPA – 40-50 minutes
Meeting Time – 10:30 AM
Hiking Distance – 4.2 miles (Loop)
 
The All Trails link will provide more information on location, directions, description, and pet friendliness.  It will also provide an elevation profile.
 
https://www.alltrails.com/explore/trail/us/maryland/jerusalem-mills-and-little-gunpowder-short-loop-trail
https://dnr.maryland.gov/publiclands/Pages/central/gunpowder.aspx