 waynesburg is a borough in and the county seat of greene county, pennsylvania, united states, located about  southwest of pittsburgh. its population was 4,184 at the 2000 census. the region around waynesburg is underlaid with several layers of coking coal, including the pittsburgh no. 8 seam, the waynesburg seam, and the sewickley (mapletown) seam. this area is also rich with coalbed methane, which is being developed from the several underlying coal seams as an alternative fuel source, as of 2012. at one time, there were also natural gas and oil deposits in the area. the marcellus shale, the largest domestic natural gas reserve, is currently being developed in waynesburg and throughout greene county. early in the 20th century, four large gas comp
Boroughs_in_Greene_County,_Pennsylvania Boroughs_in_Pennsylvania County_seats_in_Pennsylvania Populated_places_established_in_1796