Ash Mountain

Ash Mountain is the highest summit in the Tuya Range of British Columbia’s Stikine Ranges, just north of High Tuya Lake at the north end of Tuya Mountains Provincial Park. One of six tuyas clustered near Tuya Lake, it is a volcanic landform formed by eruptions beneath ice or in water. Its pillow lava and hyaloclastite clearly show lava cooling in contact with ice or water, and the volcano also contains loose debris and basaltic dikes. Along with nearby tuyas such as Tuya Butte, South Tuya, and Mathews Tuya, Ash Mountain helps make the Tuya Lake area one of British Columbia’s notable volcanic landscapes.

British Columbia · Canada