An introductory chapter briefly reviews Idaho's geology followed by a series of road guides with the local particulars. The authors tell you what the rocks are and what they mean. Useful graphics and charts supplement the text and help you to understand
Few states pack so many different rocks into such a small area as Idaho. The ancient sedimentary formations of northern Idaho, the Idaho batholith in the central part of the state, the continental hot spot track and newly discovered meteorite impact crater of the volcanic Snake...