Big Timothy Mountain 山峰

Big Timothy Mountain, formerly called Boss Mountain and Takomkane Mountain, is a mountain in central British Columbia, Canada, located 9 km (6 mi) west of Hendrix Lake and 39 km (24 mi) southwest of Mount Perseus.

Big Timothy Mountain is notable for having xenoliths made of peridotite from the Earth's mantle. Other mantle material at the mountain are augite xenocrysts, and granodiorite xenoliths. The xenoliths were emplaced by the Takomkane Batholith.