What mountain range, which shares its name with a dish-washing detergent, stretches from Canada through Washington and Oregon, and into California?

Cascade Range o Cascade Mountains

Explanation:

Cascade Range o Cascade Mountains is a large mountain range in the western part of North America that extends from southern British Columbia through the states of Washington and Oregon to northern California.

It includes both non-volcanic mountains and the sharp tops of North Cascades, as well as important volcanoes such as the High Cascades.