In addition to bus services, Amtrak's daily "Empire Builder" (Chicago–Seattle/Portland) train runs through Minnesota, calling at the Saint Paul Union Depot and five other stations. Intercity bus providers include Jefferson Lines, Greyhound, and Megabus. Local public transit is provided by bus networks in the larger cities and by two rail services. The Northstar Line commuter rail service runs from Big Lake to the Target Field station in downtown Minneapolis. From there, light rail runs to Saint Paul Union Depot on the Green Line, and to the MSP airport and the Mall of America via the Blue Line.