HFDF Tower, Shoreswood
On Shoreswood Ewe Hill, by Shoreswood in Northumberland, there is the octagonal brick base of a High Frequency Direction Finding (HFDF) station, built during the Second World War. In the 1940's the brick base supported a 3 storey wooden tower, from which high frequency radio signals were exchanged with aircraft to guide them to their bases. During the war there were several aerodromes and at least 2 more HFDF towers in the area, to triangulate aircraft positions. Today, there are modern radio masts and a square covered reservoir built next to the old HFDF base.