BACKSTORY: A state in the Pacific Northwest region of the US. The Columbia and Snake rivers delineate much of Oregon's northern and eastern boundaries, respectively. Oregon contains a diverse landscape including the windswept Pacific coastline, the volcanoes of the rugged and glaciated Cascade Mountain Range, many waterfalls (including Multnomah Falls), dense evergreen forests, mixed forests and deciduous forests at lower elevations, and high desert across much of the eastern portion of the state, extending into the Great Basin.