History & local legend
Masontown Bridge carries Pennsylvania Route 21 over the Monongahela River between Greene and Fayette counties. The current crossing opened in 2015, replacing a steel truss bridge built in 1925. The earlier bridge was demolished in September 2013.
A commuter reportedly saw a hovering black rectangle here around 2015–16. This entry follows the river crossing and its surrounding sky, the setting of the sighting collected by Visit Greene.
