National Park Service, Maryland.
Built to defend the river approach to Washington, DC, Fort Washington has stood as silent sentry for over 200 years. As technologies advanced so did Fort Washington, from the brick and stone of the 19th century to the concrete and steel of the 20th century. Joining the National Park Service in 1946, the park continues to protect the Potomac River.
From I-95/495 take exit 3, Indian Head Highway South/MD 210. Travel about 4 miles to Fort Washington Road, turn right. The park is located at the end of the road. From Waldorf, MD: MD228 to Indian Head Highway/MD210 North. Turn left onto Old Fort Road. Continue to end of road, at the stop sign turn left onto Fort Washington Road, continue to park entrance.