USGS SUMMITVILLE, COLORADO GEOLOGY & ORE DEPOSITS Large Report WITH ORIG MAPS!

Description

SCARCE ITEM!!  HARD FOR ME TO FIND THESE!!
This is USGS Professional Paper 343,
Geology and Ore Deposits of the Summitville District, San Juan Mountains, Colorado
. Published in 1960, there aren't many of these around! The publication consists of the
70-page book
and
all three of the original color maps, plus a B&W map of the many underground workings and a chart showing the formations and alteration.
These all
come in a pocket in the back of the book.
This great mining district produced silver, gold, lead, and zinc, plus a little coper for many years. This report details the complex volcanic and alteration history of the district in detail and discusses the ore deposits and mines of the area. The section on the mines contains drawings of the underground workings in some cases, which are pretty cool to look at and think about.
This is a great report, one of the best for its detailed geology and the excellent maps that portray it so well. If you are interested in researching the old mining day of this location this is absolutely the book for you!!
Expert packing assured. Shipping weight is two pounds. The recent increase in postage rates was pretty big. As a result, Media Mail is now my default shipping method to keep shipping affordable.
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