Where in north America would you find a volcanic arc?

In North America, a prominent volcanic arc can be found along the Cascades Range in the Pacific Northwest, primarily in Washington, Oregon, and Northern California. This volcanic arc is part of the larger Cascade Volcanic Arc, which is a result of the subduction of the Juan de Fuca Plate beneath the North American Plate. Notable volcanoes in this region include Mount St. Helens, Mount Rainier, and Mount Shasta.