Most of the 40 miles of the Appalachian Trail in Maryland can be found in Washington County along the South Mountain Ridge. 📌Save this post for your visit to Washington County, MD Here are 5 summit hikes that branch off the AT and offer fantastic views: 1. Annapolis Rock - From the US-40 trailhead, 5 mi, moderate 2. Weverton Cliffs - From the Weverton parking lot, 1.7 mi, moderate 3. Maryland Heights - Park in Harpers Ferry and cross the Potomac River on the AT footbridge to access the Maryland