Central Railroad of Indianapolis (reporting mark CERA) is a Class III short-line railroad that operates approximately 39 miles (63 km) miles of rail line in north central Indiana. One leg of the railroad begins near Marion at the unincorporated town of Michaelsville, passes west-southwest through Herbst, Swayzee and Sims, then through the Howard County communities of Sycamore, Greentown, and finally Kokomo, where it interchanges with U.S. Rail Corporation's Winamac Southern Rail System.