Foxville is an unincorporated community in Frederick County, Maryland, United States. Foxville is located on Maryland Route 77, 4.7 miles west of Thurmont. Settled in the late 18th century, the historic village is situated between South Mountain to the west and Catoctin Mountain to the east. Catoctin Mountain Park, Cunningham Falls State Park, and the Appal…Foxville is an unincorporated community in Frederick County, Maryland, United States. Foxville is located on Maryland Route 77, 4.7 miles west of Thurmont. Settled in the late 18th century, the historic village is situated between South Mountain to the west and Catoctin Mountain to the east. Catoctin Mountain Park, Cunningham Falls State Park, and the Appalachian Trail are all within a few miles of Foxville.