Michigan Rocks & Minerals: A Field Guide to the Great Lake State (Rocks & Minerals Identification Guides)

Roadside Geology of Washington

Lake Superior Rocks & Minerals Field Guide (Rocks & Minerals Identification Guides)

National Audubon Society Field Guide to Rocks and Minerals: North America (National Audubon Society Field Guides)

Roadside Geology of Oregon

Geology: A Complete Introduction (Teach Yourself)

Roadside Geology of Nevada (Roadside Geology Series)

Roadside Geology of New Mexico

The Picture Book of Natural Wonders: A Gift Book for Alzheimer's Patients and Seniors with Dementia (Picture Books - Nature)

Rocks & Minerals of Washington and Oregon: A Field Guide to the Evergreen and Beaver States (Rocks & Minerals Identification Guides)