Pennsylvania Route 166

Pennsylvania Route 166 (PA 166) is a north–south state highway in Fayette County, Pennsylvania. It follows the path of the Monongahela River along the entire western border of Fayette County.

Pennsylvania Route 166

Pennsylvania Route 166 (PA 166) is a north–south state highway in Fayette County, Pennsylvania. It follows the path of the Monongahela River along the entire western border of Fayette County.