Sumas Peak is an official name for the summit of Sumas Mountain, which is located in the on the south shore of the Fraser River in the Fraser Valley between Abbotsford and Chilliwack, British Columbia. Elevation above sea level, prominence . The mountain is mostly tree covered to the summit, with only its far southwestern end being the locale for development of residential neighbourhoods adjacent to downtown Abbotsford and the Mission By-Pass. A trail, the Centennial Trail (part of the Trans-Canada Trail, crosses the mountain from east to west. There is also a road to a microwave tower on the peak. Chadsey Lake and the associated park are also located near the peak.