Koksilah Ridge (Hwsalu'utsum)is an elevated area located south of the Cowichan Valley on Vancouver Island, British Columbia. It is centered at 48°42′N, 123°47′W. Its summit lies about 892 meters (2,927 feet) above sea level. It is visible in most of the Cowichan Valley and on the Saanich Peninsula north of Brentwood Bay.