In this manner, the freeway did not divide any farms when it was constructed, instead running between them. It meets Lambton County Road 21 (Oil Heritage Road), the northern terminus of the Oil Heritage Route, north of the town of Wyoming. The county road is also a former southern extension of Highway 21, which itself begins as Forest Road to the east. Highway 21 is also known as the Bluewater Route, as most of its length is parallel to the shore of Lake Huron.