DeLorme Atlas: Get a complete state of topo maps in one convenient book. Streets, backroads, recreation areas and more.
Roadside Geology of Colorado: by Halka Chronic and Felice Williams. Learn about the Geology of Colorado through 188 pages of maps, photos and expert descriptions!
Rockhounding California: "A field guide to some of the state's best rockhounding sites!" This book is a 6" x 9" paperback with 190 pages of photos, maps and descriptions.
Geodes: Nature's Treasures: What are geodes? How do they form? Where can they be found? How to open them and collect them. Heavily illustrated with beautiful specimens. 292 pages.
Guide to Minerals, Rocks and Fossils: A practical and authoritative identification and reference guide to minerals, rocks and fossils. Hundreds of color photos. The 5" x 7 1/2" size is great for your field bag.
Roadside Geology of Florida: by Jonathan R. Bryan, Thomas M. Scott and Guy H. Means. Learn about the Geology of Florida through 375 pages of maps, photos and expert descriptions!