Gem Trails Of Oregon Gem Trails Of Oregon
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  Gem Trails of Oregon Gem Trails of Oregon Gem Trails of Oregon From agate to zeolite, Gem Trails of Oregon includes detailed maps and information to guide collectors to more than 80 of the best rockhounding locations in the state. Color and black & white photos highlight collecting areas and the specimens that can be found there. Mitchell, 192 pages, ISBN 0-935182-99-3 more info |
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