The historic Newcomer House at Antietam National Battlefield is the site of the Heart of the Civil War Heritage Area Exhibit and Visitor Center, made possible by a cooperative agreement between the National Park Service and the Hagerstown-Washington County Convention and Visitors Bureau. The house was built in the 1780s as part of a prosperous mill complex and is one of the few original homes on the battlefield that is open to the public. During its open season, the house is staffed by knowledgeable National Park Service volunteers and offers resources to help plan your visit to the area. Printed guides and brochures provide information about Washington, Frederick, and Carroll counties in Maryland. Three exhibit rooms explore the major themes of the heritage area: In the Heat of Battle, On the Home Front, and Beyond the Battlefield. Each room features sites and displays that relate to those themes.