An essential reference for rockhounds, hikers, climbers, and geology enthusiasts Rocks, Minerals, and Geology of the Pacific Northwest highlights 100 rocks, min

Venturing through two of the most diverse and fascinating regions of North America, these activity books combine the subjects of geology and physical geography

The geologic history of the Pacific Northwest is as unique as the region itself. Created via tectonic plate movements and accretionary events, the original terr

The definitive guide to rocks, minerals and gems, this title includes an introduction to rocks and minerals and how they form, and a quick guide to what you nee