Rocks & Minerals

Preliminary Report on Gowganda Mining Division District of Nipissing Ontario

Fossil Forests of the Yellowstone National Park

The Geologic Setting of the John Day Country: Grant County, Oregon

The Pleistocene of North America and its vertebrated animals

The Natural History of Chocolate

The Flow of Time in the Connecticut Valley: Geological Imprints

Prairie, Peak, and Plateau: A Guide to the Geology of Colorado

The Ultimate Rockhounding Handbook