Bryn Mawr is an 'L' station on the CTA's Red Line. It is located at 1119 West Bryn Mawr Avenue in the Bryn Mawr Historic District of the Edgewater neighborhood of Chicago, Illinois. The adjacent stations are Thorndale, located about one half mile to the north, and Berwyn, about three eighths of a mile to the south. Four tracks pass through the station, but there is only a single island platform in the center of the tracks; Purple Line weekday rush hour express service use the outside tracks but do not stop. The name "Bryn Mawr" comes from the SEPTA Regional Rail (and former PRR Main Line) station located north of Philadelphia in the community of the same name. The name came to the area in the 1880s by Edgewater developer John Lewis Cochran, and is Welsh for "Big Hill."