Rockhounding Washington: A Guide to the State's Best Sites (Rockhounding Series)

Rocks & Minerals of Wisconsin, Illinois & Iowa: A Field Guide to the Badger, Prairie & Hawkeye States (Rocks & Minerals Identification Guides)

Simon & Schuster's Guide to Rocks & Minerals

Rocks & Minerals of the Pacific Coast: Your Way to Easily Identify Rocks & Minerals (Adventure Quick Guides)

Gem Trails of Oregon

Rockhounding Montana: A Guide to 100 of Montana's Best Rockhounding Sites (Rockhounding Series)

Nature Guide: Rocks and Minerals: The World in Your Hands (DK Nature Guides)

Rock and Gem: The Definitive Guide to Rocks, Minerals, Gemstones, and Fossils

The Practical Geologist: The Introductory Guide to the Basics of Geology and to Collecting and Identifying Rocks

Arizona Rocks & Minerals: A Field Guide to the Grand Canyon State (Rocks & Minerals Identification Guides)