Historical Marker
Blacksville
Historical marker location:
Blacksville, West Virginia
( Marker is on Mason Dixon Highway (West Virginia Route 7) 0.1 miles east of Washington Road, on the right when traveling west.)
Marker installed: 1963
West Virginia is home to the Green Bank Telescope, the world's largest fully steerable radio telescope. It is operated by the National Radio Astronomy Observatory and is located in the Allegheny Mountains.