Cascade Range, North Cascades, North Cascades National Park, Cascade Volcanoes, 1980 eruption of Mount St. Helens, Lassen Peak, Mount Meager, Mount Mazama, Mount Garibaldi, Medicine Lake Volcano, Mount Baker, Mount Bachelor, Mount Thielsen, Lassen Volcanic National Park, Mount Rainier National Park, Cascades (ecoregion), Ecology of the North Cascades