The Washington Monument State Park is home to the first completed monument dedicated to the memory of George Washington. Visitors can climb to the top of the stone structure for a panoramic view of the valley below. The park provides access to the Appalachian Trail and overnight parking is available in the lower lot. Picnic shelters and grills are also available.

Greenbrier State Park offers many hiking and biking trails, a boat ramp, paddleboat and rowboat rental area, and a 42-acre lake. Parking, a food concession area, and restrooms are also available. The Appalachian Trail runs through the park and there is a path connecting to the Appalachian Trail.

South Mountain State Park is a 40-mile long multi-use state park weaving along the South Mountain ridge from the Pennsylvania line to the Potomac River and surrounding the Appalachian Trail. Most of the park is only accessible by foot. Guided climbing at Annapolis Rocks requires a special use agreement to be completed in advance.

Pen Mar is a county park located in Cascade, Maryland. The park provides spectacular views of the Cumberland Valley. The Appalachian Trail runs through Pen Mar Park. Parking, restrooms, and food concessions are available.

Mt. Briar Wetland Preserve is a thirty-acre natural area, located along Millbrook Road (off Maryland Rt 67) near Rohrersville. It contains approximately one mile of floating boardwalk which meanders throughout the Preserve. In order to safeguard the wetland, the entrance gates are open by appointment only. Walk-in traffic is permitted.

Devil’s Backbone is a county park in Boonsboro, Maryland. This nine acre park includes a footbridge across the Antietam Creek, which divides the park, providing access to the “island” section of the park as well as to a nature trail which ascends to the summit of the ridge from which the park takes its name. The park also offers fishing and an access for canoes to the Antietam Creek. Parking and restrooms are available.