Northern California Gold and Gems Maps: Then and Now

This collection of 5 double sided historical mining maps will help you plan your next prospecting trip.

Then And Now Maps are a unique map series shows changes in gold & gem fields over the last 100 years in selected western states. Each map package includes current USGS maps of the state along with antique turn-of-the-century maps of the same areas for comparison.

Package contains 5 maps measuring 17.5" x 23" unfolded, printed on both sides and reproduced from authentic documents on file from resources such as National Archives, State Libraries and Geological & Mineral Reports. Maps show 100 years of reported gold occurrences along with gem deposits. 

• Folds to 6.5" x 9"
• Unfolded size - 17.5" x 23"