Oregon

 was an American state. At one time, it was the site of a Silurian base, which the US branch of UNIT dispatched militarily. UNIT also had a listening post somewhere in the foothills of the Columbia Plateau at which David Arthurs and Bob Decker were stationed during the 1970s. (PDA: The Devil Goblins from Neptune) On another occasion — on or just after Miracle Day — television station WNKW reported it to be the site of a death that turned out to be a hoax. (TW: The New World)