sentences:  Warren County has a single NJ Transit train stop, located at the Hackettstown station on the Montclair-Boonton Line.The Norfolk Southern Railway's Lehigh Line (formerly the mainline of the Lehigh Valley Railroad), runs through the southern Warren County on its way to Phillipsburg.Warren County also contracts with Easton Coach to provide demand-responsive service, as well as limited fixed-route service along the Route 31 and Route 57 corridors.