This is a very nicely illustrated geological tour of the United States. Arranged alphabetical by states, it devotes a two page spread to various geo-sites, showing various types of rocks, landsforms, caverns, and mountains. A nicely done description is shown, with various slice-away maps so that the reader has a greater visual appreciation of the site. The photographs are very nicely reproduced, and I might wish this library book for my personal book collection. ( )