Mormond Hill was Station 44 in the North Atlantic Radio System. Built in 1960 to be the penultimate link in a chain of radio sites stretching from Iceland to Fylingdales in Yorkshire. Similar to the DEW line, its function was to provide Early warning of missile launches back to the Cheyenne Mountain complex in the USA. Mormond Hill provided connectivity to the RAF radar site at Buchan, and down to Fylingdales. The site was shared with British Telecom, who still operate tropospheric scatter links to the North Sea oil rigs from there, and the Army. All that remains now are commercial radio towers belonging to several different users. There are no buildings left on the NARS site, and there is no evidence that there were ever any underground facilities there.