What is the extent of the Cascade Range?

Several lofty volcanic peaks dominate the Cascade Range of the Pacific Northwest; the principal part of the range extends from Mount Garibaldi in British Columbia, Canada, to Lassen Peak in northern California, a distance of about 1000 miles. 


Sources of Information:

Tilling, R.I., Topinka, L.J., and Swanson, D.A., 1990, Eruptions of Mount St. Helens: Past, Present, and Future​: U.S. Geological Survey General Interest Publication, 56 p.

Cascades Volcano Observatory, 1994, Preparing for the Next Eruption in the Cascades: USGS Open-File Report 94-585.