The geography of Washington state is diverse, featuring coastal regions, mountains, and forests. The western part is dominated by the Cascade Range, which includes Mount Rainier, the state's highest peak. The coastline along the Pacific Ocean offers beautiful beaches and rugged cliffs. In contrast, the eastern part of Washington is characterized by rolling hills and plateaus, part of the Columbia Plateau. The Columbia River flows through the state, providing important water resources and recreational opportunities. Overall, Washington showcases a variety of landscapes, from lush rainforests to arid regions.