The village's commerce is divided into two centers that lie one mile apart along Main Street and at differing elevations. These are known as "Lower Port Jefferson" and "Upper Port Jefferson", respectively the waterfront and the railroad station sections of town. The first is currently the center of tourism, while the latter is undergoing plans for revitalization to the economic viability of its historic self. Further from Main Street, the remainder of Port Jefferson consists of several residential neighborhoods defined by the hills on which they sit. In the northeastern corner of the village is the neighborhood of "Harbor Hills". This neighborhood occupies the western edge of Mount Sinai Harbor and contains the Port Jefferson Country Club at Harbor Hills. "Brick Hill" is the neighborhood directly west of the Lower Port Jefferson commercial center and was first developed by the noted circus owner P. T. Barnum. West of Upper Port Jefferson is "Cedar Hill", which is topped by the c. 1859 Cedar Hill Cemetery where residents formerly would bask while enjoying views over the village from its highest point.