van buren trail state park location: The main entrance to the Trail State Park is through Van Buren State Park. Go 3 miles south of South Haven to the dead end of Ruggles Road. Ruggles Road is accessed either by old Blue Star Hwy. (A2) or County Road 380. Both Blue Star (A2) and CR 380 are intersected by M-140 and M-43. The nearest freeway is I-196 and the park entrance is signed from exit 13.