The Monon Railroad , also known as the Chicago, Indianapolis, and Louisville Railway from 1897 to 1971, was an American railroad that operated almost entirely within the state of Indiana. The Monon was merged into the Louisville and Nashville Railroad in 1971, and much of the former Monon right of way is owned today by CSX Transportation.Historic Marker in Monon, erected by the Monon Historical Society, 1982 In 1970, it operated of road on of track; that year it reported 1320 million ton-miles of revenue freight and zero passenger-miles. (It also showed zero miles of double track, the longest such Class I railroad in the country.)
