SEPTA's Subway-Surface Trolley Route 36 (a.k.a.; the Elmwood Avenue-Subway Line) is a trolley line operated by the Southeastern Pennsylvania Transportation Authority (SEPTA) that connects the 13th Street station in downtown Philadelphia, Pennsylvania, to the Eastwick Loop station in Eastwick section of Southwest Philadelphia, although limited service is available to the Elmwood Carhouse. It is the longest of the five lines that are part of the Subway-Surface Trolley system, and was even longer between 1956 and 1962 when the western terminus was at 94th Street and Eastwick Avenue. From 1962 through the 1970s, it was at 88th Street and Eastwick Avenue, making the route long. Since 1975, it only goes as far as what was once 80th Street at the southern edge of the Penrose Plaza shopping center parking lot. Route description Starting from its eastern end at the 13th Street, Route 36 runs in a tunnel under Market Street. It stops at underground stations at 15th Street, 19th Street, 22nd Street, 30th Street, and 33rd Street. From 15th to 30th Streets, it runs on the outer tracks in the same tunnel as SEPTA's Market–Frankford Line. Passengers may transfer free of charge to the Market–Frankford Line at 13th, 15th, and 30th Streets and to the Broad Street Line at 15th Street. Connections to the SEPTA Regional Rail are also available. Underground passageways connect the 13th and 15th Street Stations to Jefferson Station and Suburban Station. Route 36 surfaces at the 40th Street Portal near 40th Street and Baltimore Avenue (US 13), and then runs southwest along Woodland Avenue along with the Route 11 trolleys, and then turns down 49th Street where the Woodland Maintenance Facility is located and the Route 10 diversion line ends. After 49th Street crosses over the Wilmington/Newark Line, it takes a sharp right curve as the road becomes Grays Avenue. Route 36 runs along Grays south of the Wilmington/Newark Line until it makes a diagonal move southwest onto Lindbergh Boulevard. Shortly after leaving Grays the line intersects with 54th Street and crosses over a bridge for the Philadelphia Subdivision freight line, and immediately intersects with a road running along the line leading to Bartram's Botanical Garden, the oldest surviving botanical garden in North America. Just before Lindbergh Boulevard becomes a divided highway east of 56th Street, the line moves onto Elmwood Avenue. From there it crosses over the Airport Line, continuing westward until it enters an industrial