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.
The Mother Lode System of California