Pittsburgh reaches tentative deal to expand Three Rivers Heritage TrailPittsburgh is working to obtain land from rail freight company CSX to fill gaps in the Three Rivers Heritage Trail in the Strip District and Duck Hollow. Mayor Corey O’Connor announced the memorandum of understanding — a kind of non-binding agreement — for a 4.61-acre plot of land in thePittsburgh Tribune-Review11d agoWhole story →BuildCorey O'Connorthree rivers heritage trail expansion