The Elbow Lake Subdivision or Elbow Lake Sub is a railway line that runs about 137 miles (220 km) from Glenwood, Minnesota to Enderlin, North Dakota. The line is currently operated by CPKC Railway (CPKC) under its subsidiary, the Soo Line Railroad. The rail line began construction in 1887 and was a continuation of the Minneapolis and Pacific Railway line to the Dakotas that would supply grain to Twin Cities flour mills. The line begins in Glenwood and splits with the Detroit Lakes Subdivision before going through many small towns and reaching the junction with the Morris Subdivision near Nashua. The line continues westward into North Dakota, meeting the Veblen Subdivision at Veblen Junction. At Hankinson, the route meets the DMVW Dakota Subdivision and turns north, eventually reaching the western terminus at Enderlin.