Cascade Range geology

The Cascade Range is a mountain range in the Pacific Northwest of the United States, primarily formed by volcanic activity along the Pacific Plate and North American Plate boundary. It features a series of dormant and active volcanoes, including Mount St. Helens and Mount Rainier. The geology is characterized by a mix of volcanic rocks, ancient lava flows, and glacial deposits. These formations result from tectonic forces and the subduction of the oceanic plate beneath the continental plate, leading to unique ecosystems and stunning landscapes. The Cascades are crucial for understanding volcanic processes and earthquake risks in the region.