southward to Willimantic, site of a connection with the New England Central Railroad. Another regularly operated train operates between Plainfield and Cedar Hill Yard in North Haven, Connecticut, via Groton, Connecticut. Valley Falls: A pair of local freight trains are based in Valley Falls. These serve customers in Rhode Island, particularly the Port of Providence. North Haven: P&W leases track space at Cedar Hill Yard from its owners, CSX and Amtrak. Local freight trains based at Cedar Hill operate to Middletown, Connecticut, and the Port of New Haven. Other local freights based here provide freight service for rail-based shippers on Metro-North Railroad's Danbury Branch, and the Waterbury Branch from Derby southward. Cedar Hill is also the base of operations for unit trains of construction aggregate. These trains originate at quarries in Plainfield and Wallingford, Connecticut, as well as an interchange with the Branford Steam Railroad in Branford, Connecticut. Some trains are destined for Tilcon Connecticut facilities in Danbury, Old Saybrook, and Groton, Connecticut, while the remainder travel to Fresh Pond Junction where trains are handed off to the New York and Atlantic Railway for destinations on Long Island. System The Providence and Worcester directly owns and operates: Its main line, connecting Providence and Worcester via Woonsocket. The Slatersville branch, between Woonsocket and Slatersville. The East Providence Branch and East Junction Branch, two connected branch lines. The East Providence Branch originates at Valley Falls Yard where it meets the P&W main line and ends in East Providence, where it meets the East Junction Branch. The latter branch runs between East Providence and the end of P&W's operating rights in Seekonk, Massachusetts. The Moshassuck Industrial Track and the Warwick Industrial Track, which are remnants of the Moshassuck Valley Railroad in Pawtucket, Rhode Island, and the Warwick Railway in Cranston, Rhode Island, respectively. The Norwich and Worcester main line, between Worcester and Norwich. A branch of this line between Plainfield and Versailles, Connecticut. A three-mile-long branch line in Groton, Connecticut, which connects to the Northeast Corridor. The former Boston and New York Air-Line Railroad between North Haven and Middletown, Connecticut. The Belle Dock line which serves the Port of New Haven. P&W operates on but does not own the following: The Harbor Junction Industrial Track, a branch serving the Port of Providence, owned by the City of Providence. A branch between Versailles and Willimantic, Connecticut, owned by CTDOT. The former Connecticut Valley Railroad