The Mesabi Division file contains clearance diagrams for 10 railway line segments divided at Minneapolis Junction, Minnesota; Coon Creek, Minnesota; Boylston, Minnesota; Duluth, Minnesota; Cass Lake, Minnesota; Brookston, Minnesota; Kelly Lake, Minnesota; Gunn, Minnesota; Virginia, Minnesota; Saint Cloud, Minnesota, Brook Park, Minnesota; Sauk Centre, Minnesota; Cass Lake, Minnesota; Allouez, Wisconsin and Saunders, Wisconsin. Individual segment diagrams appear to have been updated in the period between 1957 and 1969.

The Willmar Division file contains clearance diagrams for 9 locations: Twin City Bridges, Saint Paul, Minnesota; Saint Paul Union Depot, Saint Paul, Minnesota and Minneapolis Union Depot, MInneapolis, Minnesota; East Third Street, Minneapolis, Minnesota to University Switch, Minneapolis, Minnesota (for freight trains); East Third Street, Minneapolis, Minnesota to University Switch, Minneapolis, Minnesota (for passenger trains); University Switch, Minneapolis, Minnesota to Union Depot Junction (via Stone Arch Bridge), Minnesota; University Switch, Minneapolis, Minnesota to Union Depot Junction (via Minneapolis Junction), Minnesota; Union Depot Junction to Lyndale Junction, MInnesota (Tracks 1, 2 and 3); Union Depot Junction to Lyndale Junction, Minnesota (Tracks 4 and 5); and 12 railway line segments divided at Lyndale Junction, Minnesota; Breckenridge, Minnesota; Saint Cloud, Minnesota; Minneapolis Junction, Minnesota; Coon Creek, Minnesota; Willmar, Minnesota; Garretson, South Dakota; Sioux City, Iowa; Yankton, South Dakota; Benson, Minnesota; Huron, South Dakota; Watertown, South Dakota; Sioux Falls, South Dakota; Hutchinson Junction, Minnesota; Hutchinson, Minnesota; Hopkins Junction, Minnesota and Hopkins, Minnesota. Individual segment diagrams appear to have been updated in the period between 1957 and 1969.