Detection Type: Pulse Induction

making it useful in the shop

This unique six-map set combines authentic late-1800s Colorado maps with transparent modern road overlays

nuts and bolts

Oregon Gold and Gems: Then & Now GPZ 7000 Coils Detection Type: Pulse InductionOregon Gold & Gems Maps: Then & Now Historic & Modern Prospecting Maps for Oregon's Gold, Silver, Gemstones & Mining Districts Discover Oregon's legendary goldfields and gemstone collecting areas with Oregon Gold & Gems Maps: Then & Now. This comprehensive five map collection combines modern USGS maps with authentic historic mining maps, allowing gold prospectors, metal detectorists, rockhounds, and outdoor enthusiasts to compare today's landscape