Dive into the geologic history and origin of the Eastern Klamath Mountains, which expose a complex assembly of ancient rocks and comprise one of the eight major terranes of the Klamaths. These terranes are pieces of earth’s crust that failed to “subduct” (sink) beneath the western edge of the continent, and were instead accreted onto its coastline. Learn to identify many common area rocks and what they tell us about the geologic processes shaping the region, and about unique features like the ancient volcanic arc preserved in the Eastern Klamath, the magmatic origins of local gold deposits, and how stresses during the terrane’s accretion contribute to landslides seen today.