The Intermontane Belt is a flatter, more rounded region composed of three terranes, Stikinia, Quesnellia and the Cache Creek Terrane. The belt has a lower metamorphic grade than the Omineca Belt and ranges from 400 million to within 10,000 years old. Volcanic activity has been recorded as occurring in the past 10,000 years, including at Nazko Cone and in the Satah Mountain volcanic field.