A 1970 original Geology Survey of Wyoming book featuring mines and minerals. It includes a map and is written in English by various authors. The book is illustrated in color, focusing on the geology of North America. It is a unit quantity item from the United States, specifically Wyoming. It is not signed or personalized, and has no California Prop 65 warning. please feel free to make an offer. I have probably a 1000 or more and also some personal ones that were drawn by a geologist from Colorado
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