Interurban Trolley is an Elkhart County regional public bus service operated by the Michiana Area Council of Governments (MACOG). It was originally known as the BUS system. The system serves the city of Elkhart and neighboring Goshen, Osceola, Dunlap and Mishawaka. It is made up of five fixed routes that radiate from downtown Elkhart and an on-demand para-transit service that covers the same territory as the fixed routes. The name refers to the fact that the system serves several communities using vintage-trolley-style buses, evoking interurban trains that were common in United States during the early 20th century.