Atlin Volcanic Field
 The Atlin Volcanic Field also called the Llangorse Volcanic Field and the Surprise Lake Volcanic Field is a group of late-Pleistocene to Holocene cinder cones that lies on the Teslin Plateau east of Atlin Lake Canada. The largest volcanic feature is the 1880-m-high Ruby Mountain which has been partially dissected by Pleistocene and post-Wisconsin glaciation.