Mount Rexford is a rugged granite peak in southwestern British Columbia near the Canada–United States border, west of Chilliwack Lake in the North Cascades. Originally known as Ensawkwatch, it took its present name from an early settler with a nearby cabin and trap lines, and the name was officially adopted in 1950. Its rock belongs to the Chilliwack batholith, shaped further by uplift, faulting, and repeated Pleistocene glaciation into steep ridges, deep valleys, and the Nesakwatch Spires. Draining into creeks that feed the Chilliwack River, the mountain became a notable climbing objective after its first recorded ascent in 1951 and later route development, especially on the West Ridge.