southbound trains making stops at the Randolph/Wells, Madison/Wells, Quincy/Wells, LaSalle/Van Buren and State/Van Buren stations, while northbound trains made stops at the Adams/Wabash, Madison/Wabash, Randolph/Wabash and Clark/Lake stations. Between the Loop and Roosevelt Road, trains made an intermediate stop at the Congress/Wabash station, and the North Shore Line utilized the Congress Terminal as its downtown baggage station, an arrangement which continued after the CTA vacated the terminal in 1949. Operation into Chicago over the "L" was maintained until the end of rail service in 1963. South Side extension In 1922, another trackage rights agreement was negotiated which permitted certain North Shore Line trains to operate over the South Side Elevated from Roosevelt Road to the 63rd/Dorchester station in the Woodlawn neighborhood. Trains made intermediate stops at 43rd Street, 61st Street, South Park Avenue, Cottage Grove Avenue and University Avenue. Operation over the South Side Elevated provided the North Shore Line with access to the Chicago "L" yards at 61st and 63rd Streets. Service south of Roosevelt Road was discontinued in 1938. History Early history The Bluff City Electric Street Railway Company began operation in May 1895 as a local street railway line in the city of Waukegan, Illinois. The Bluff City Electric line had already been extended as far south as Highland Park when it was acquired by the newly incorporated Chicago and Milwaukee Electric Railroad in May 1898, and the following March a connection was made to the Chicago, Milwaukee & St. Paul Railway (Milwaukee Road) line at Wilmette. In August 1899, through service began operating from downtown Waukegan to Church Street in Evanston, where passengers could transfer to trains of the Northwestern Elevated Railroad and continue into Chicago. The rudimentary, single-tracked interurban line was steadily upgraded over the following decade, with the addition of a second track, improvements to the physical plant and the gradual relocation from public roads onto private right-of-way where possible. Between 1902 and 1904, a branch line was constructed from the mainline at Lake Bluff to Libertyville. In 1905, this branch line was extended further west to Mundelein (then known as “Rockefeller”). In addition to giving the Chicago and Milwaukee Electric access to a large gravel pit east of Libertyville, the new branch line also enabled the interchange of carload freight with both the EJ&E and the Milwaukee Road at Rondout, as well as with the Wisconsin Central Railway at Mundelein. Around this same