The state park includes the restored Mount Airy Mansion, which was formerly operated as an event facility, as well as hiking, biking and equestrian trails for day-use.

Washington himself did not approve of the match owing to the couple's youth, but eventually gave his consent,[5][6] and was present at the wedding celebrations, which took place at Mount Airy.

By the 1770s Benedict Swingate Calvert controlled a large and profitable estate of around 4,000 acres (1,600 ha), with upwards of 150 slaves.

The ruins were purchased and restored by socialite Cissy Patterson, the publisher of the Washington Times-Herald, who entertained presidents and other important persons here.

She in turn bequeathed the property to Ann Bowie Smith, and it was from her family that the State of Maryland purchased Mt.