This mountain was named in 1956 in honour of Lt. Col. Don Worthington. Lt. Col. Worthington commanded the 28th Armoured Regiment (British Columbia Regiment) C.A.C. during the Second World War. He was killed on 9 August 1944 during the Battle for Hill 111, Normandy, France during Operation Totalize II. Hill 111 is located half a mile east of Route N158, approximately midway between Caen and Falaise.