The Gwynns Falls Trail mainline (abbreviated "GF") runs 10 miles from Baltimore's Inner Harbor to the Park and Ride facility at the end of Interstate 70 (which had been planned to cut through the park and end at Interstate 95, with a spur route, Interstate 170, branching off to the east and leading to downtown through the residential areas of West Baltimore; however, vehement community and environmental opposition helped put an end to these plans), located at the park boundary at the city/county border.