Gem Trails of Colorado provides clear maps, concise directions, detailed text and photos highlighting over 75 collecting sites. Color specimen photos aid in identifying the rocks and minerals found there. 144 pgs.
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More books that help you identify the best collecting locations in a state and the maps to get you there.
Gem Trails of Southern California
Gem Trails of Northern California
Gem Trails of Arizona
Gem Trails of Nevada
Gem Trails of Utah
Gem Trails of New Mexico
Gem Trails of Oregon
Gem Trails of Texas
Gem Trails of Washington
The GPS Guide to Western Gem Trails (accompaniment to above Gem Trails Guides)
Also great for rockhounds:
Rocks and Minerals DK Smithsonian Handbook
DK Fossils Handbook
