The park is in Harford and Baltimore Counties.
To Hammerman Area: From I-95 take exit 67A for Route 43 east (White Marsh Boulevard). Follow 43 to route 40 east. Turn right at the first light onto Ebenezer Road and follow it for 4.5 miles.
To Monkton Station (NCR Trail): From I-83N, take exit 27 and turn right on Mount Carmel Road. Turn right on York Road and make a quick left onto Monkton Road. Follow it until it crosses the NCR Trail. Monkton Station will be on your left. Limited parking.
To Jerusalem Mill (Central Area and Park Headquarters): From I-95 take exit 74 for Route 152 West (Mountain Road). Follow Mountain Road toward Fallston and turn left onto Jerusalem Road. Jerusalem Mill (2813 Jerusalem Road in Kingsville) will be on your left after 1.1 miles.