With this informative guide, you can explore the mineral-rich regions of Pennsylvania and New Jersey, from the beaches to the mountains. It describes the states' best rockhounding sites and covers popular and commercial sites as well as numerous little-known areas. This handy guide also describes how to collect specimens, includes maps and directions to each site, and lists rockhound clubs in each the state. Rockhounding Pennsylvania and New Jersey offers a complete introduction to this many-faceted hobby and is an invaluable sourcebook.