Download or read book Gem Trails of Colorado written by James R. Mitchell and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and expanded second edition features over 90 locations, including 27 new sites, where collectors can explore the mineral, gem and fossil treasures of Colorado. Includes clear maps and directions, detailed descriptive text, site photos, full-color specimen photo insert, lists of rock and mineral clubs, mineral museums and mine tours, a mineral locator index and glossary.