Union Advance Trail is an easy hike in Antietam National Battlefield near Hagerstown, Maryland. This trail is kid friendly. This hike starts at auto tour stop 9. the park says "this trail crosses Burnside Bridge and makes a loop on the east side of Antietam Creek. The hike explores the area where the Confederates defended the Burnside Bridge, and then crosses over the creek to where the Union Ninth Corps made their advances to capture the bridge."
Contact: Antietam National Battlefield P.O. Box 158 Sharpsburg, MD 21782