Download Free Mother Lode System Of California By Adolph Knopf Us Geological Survey Professional Paper 157 Book in PDF and EPUB Free Download. You can read online Mother Lode System Of California By Adolph Knopf Us Geological Survey Professional Paper 157 and write the review.

The Mother Lode System of California has produced well over a Billion dollars in Gold at today's prices. The System trends northwest through Northern California. It is estimated that nearly 60% of the gold in this region still lies in the ground. This book is a reprint of USGS Professional Paper 157 and covers the Geology, Mines, and Districts of this region. Now back in print by Miningbooks.com.