Rocks & Minerals of Washington & Oregon by Dan R. Lynch

A practical and visually engaging field guide to the geology of the Pacific Northwest by Dan R. Lynch and Bob Lynch. Rocks & Minerals of Washington & Oregon introduces readers to many of the region’s notable rocks, minerals, gemstones, and geological formations through detailed photographs and easy-to-use identification information.

Covering volcanic rocks, agates, petrified wood, crystals, fossils, and other geological treasures, the book combines scientific insight with accessible field guidance for outdoor exploration and collecting. Compact and approachable, it is designed for both beginners and experienced rock enthusiasts exploring the diverse landscapes of Oregon and Washington.

An ideal companion for hikers, rockhounds, campers, students, and anyone fascinated by the geology and natural history of the Pacific Northwest.