AT from US 40 south to Gapland Rd

The Battle of South Mountain—known in several early Southern accounts as the Battle of Boonsboro Gap—was fought September 14, 1862, as part of the Maryland Campaign of the American Civil War. Three pitched battles were fought for possession of three South Mountain passes: Crampton's, Turner's, and Fox's Gaps.

The Battle of Crampton's Gap, or Battle of Burkittsville, was a battle fought between forces under Confederate Brig. Gen. Howell Cobb and Union Maj. Gen. William B. Franklin as part of the Battle of South Mountain on September 14, 1862, at Crampton's Gap in Western Maryland, during the Maryland Campaign of the American Civil War.

The National War Correspondents Memorial, part of Gathland State Park, is a memorial dedicated to journalists who died in war. It is located in Maryland, at Crampton's Gap at South Mountain. Civil War correspondent George Alfred Townsend, or "Gath", built the arch in 1896, and it was dedicated October 16, 1896.

Dahlgren Chapel is located at the summit of Turner's Gap in western Maryland between Middletown and Boonsboro. The Gothic revival stone chapel was built in 1881 and consecrated as the Chapel of St. Joseph of the Sacred Heart of Jesus. Most of the building materials came from the immediate area of the site, while a marble altar was imported from Italy.

Crampton's Gap, also known as Crampton Gap, is a wind gap on South Mountain in Maryland.The 928 feet (283 m) gap connects Burkittsville in the Middletown Valley to the east with Gapland and Rohrersville in the Pleasant Valley to the west.The gap is the location of Gathland State Park and was the site of the Battle of Crampton's Gap on September 14, 1862, during the Maryland Campaign of the American Civil War.

Fox's Gap, also known as Fox Gap, is a wind gap in the South Mountain Range of the Blue Ridge Mountains, located in Frederick County and Washington County, Maryland. The gap is traversed by Reno Monument Road. The Appalachian Trail also crosses the gap along the ridgeline.

Lambs Knoll is a peak of South Mountain on the border of Washington County and Frederick County in the state of Maryland, United States. The 1,758 feet (536 m) peak is the second tallest on South Mountain in Maryland behind Quirauk Mountain.

Turner's Gap is a wind gap in the South Mountain Range of the Blue Ridge Mountains, located in Frederick County and Washington County, Maryland. The gap is traversed by U.S. Route 40 Alternate, the old National Pike. The Appalachian Trail also crosses the gap along the ridgeline.

The Turner's and Fox's Gaps Historic District comprises the Civil War-era battlefield involved in the Battle of South Mountain, which took place on September 14, 1862. The district extends on the west to the slopes of South Mountain in the area of Zittlestown, and to the east beyond the foot of the mountain to the small community of Bolivar.

Washington Monument State Park is a public recreation area located approximately four miles (6.4 km) east of Boonsboro, Maryland. The park preserves the Washington Monument, a 40-foot-tall (12 m) tower honoring George Washington, the first President of the United States. The monument, which sits near the summit of South Mountain's Monument Knob, was added to the National Register of Historic Places in 1972.