michigan highway north south state trunkline highway extreme southwestern corner state michigan connecting state road indiana interstate highway designated provided connection southern end indiana route description crosses michigan soon crosses border road curves northwest continues generally rural area trunkline intersects wilson road passes commercial development little mile road comes northern terminus interchange exit officially ends interchange roadway known harbor country drive continues northwest heads like state highways michigan maintained michigan_department_of_transportation mdot department traffic surveys showed average vehicles highway daily section listed national_highway_system network roads important country economy defense mobility history ended continues completion indiana portion freeway ended present exit mile long stretch road designated carry traffic connects indiana constructed section connection southern end michigan state line major intersections entire highway
M-239 (Michigan highway)