Every prospector needs a treasure map! Discover this map book which is the first field guide map book of its kind, built to help prospectors narrow their search to find gold in areas that previous sampling by the government has shown to have more gold. Eureka Maps Inc. has applied a geostatistical mapping technique to specifically identify these gold rich areas in Boulder County, Colorado. This map book contains a series of easy to understand maps, made with prospecting in mind. Future Eureka Maps in this series of maps will also include map books for various gold rich localities in Australia, New Zealand, Canada, and the USA.