Gem Trails of Northern California rockhounding This systematic approach to mineral

This systematic approach to mineral exploration is used by successful prospectors and mining companies today

These maps also feature an overlay of modern road systems

MAP 6 1900 SE Section with Overlay

5" x 41" x 65"

numeric target ID and includes batteries

Gem Trails of Northern California rockhounding This systematic approach to mineralNorthern Californias mineral deposits have much more to offer than the well known gold. Gem Trails of Northern California is your guide to over 76 collecting locations, featuring 60 varieties of minerals and fossils. You will find jade, pink rhodonite and obsidian amongst much much more. Sites featured are both popular and commercial areas as well as little known collecting spots. Each location features a detailed description and directions as well as