Washington Mountain Ranges by Robert Steelquist, featuring the striking landscape photography of Pat O'Hara, is a 1986 geographic and visual survey originally published as part of the Washington Geographic Series. The book combines detailed natural history with sweeping imagery to explore the complex topography, ecological zones, and rugged wilderness areas that define the state's prominent massifs, particularly the Cascade and Olympic ranges. Ultimately, it serves as a highly engaging and visually rich tribute to the region's physical geography, offering a valuable resource for outdoor enthusiasts, conservationists, and anyone captivated by the natural heritage of the Pacific Northwest.

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