Historical Marker
Adam Stephen House
Historical marker location:
309 East John Street, Martinsburg, West Virginia
( Marker is on East John Street east of South Water Street, on the right when traveling west.)
309 East John Street. 1774-1789.
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.