The Klamath-Siskiyou ecoregion is a unique area located in southern Oregon and northern California. It is known for its rich biodiversity, featuring a variety of ecosystems, including forests, mountains, and rivers. The region is home to many endemic species, meaning they are found nowhere else in the world, making it a critical area for conservation. This ecoregion is characterized by its complex geology and climate, which contribute to its diverse habitats. The presence of the Klamath River and the Siskiyou Mountains plays a significant role in shaping the landscape and supporting wildlife. The area's varied elevations and microclimates create ideal conditions for numerous plant and animal species.