Dales is on the climb from the northeastern tip of California's Central Valley to the mountainous region where the Sierra Nevada meets the actively volcanic Cascade Mountains. Prior to Mount St. Helens, Mount Lassen was the last volcano to erupt in the United States in 1914 continuing for over 2 years.
Dales is situated on a route from California's Central Valley's northernmost point to where the Sierra Nevada meets the volcanically active Cascade Mountains. Prior to Mount St. Helens' eruption, Mount Lassen was the last volcano in the United States to erupt in 1914 and continued for over two years.