A free field map that brings together BLM mining claims, USGS historic mines, Macrostrat geology, rock-type layers, LiDAR hillshade and public land-status signals — built so curious newcomers and seasoned prospectors can see where the data points, what the ground looks like, and what to verify before heading out.
Think of it as a research compass, not a promise: AdAurum uses the best free public sources available, while smart prospectors still check local offices, signs and current claim records before digging. Step up to 49ers for the full BLM LR2000 claim-history database, advanced MRDS filters, unlimited offline maps, cloud sync, push alerts and bulk GPX/PDF exports. Same data the pros pay $200/month for, for the price of a coffee a month.
Free signup · no credit card · paid tiers optional
Free is genuinely free, forever — the whole map, every layer, LiDAR terrain, mineral scoring and community feed. The 49ers tier adds the full research stack: BLM LR2000 claim history, advanced MRDS filters, unlimited offline maps, cloud sync across devices, bulk GPX & PDF exports, claim-watch alerts and your own private clubs.
The whole map, every layer, mineral scoring, the community feed. For anyone curious about gold-bearing ground and public-data signals.
The full BLM LR2000 claim-history database, advanced MRDS filters, unlimited offline maps, cloud sync, bulk exports.
Every 49ers feature, for the lifetime of the app. Locked-in price, never charged again.
Every layer below is included on the free plan. No paywalls on the data itself.
USGS data plotted as you pan — every recorded mine with mineral, production size, status and operator history.
Rock types, formation ages and mineral indicators from USGS and Macrostrat sources, layered straight onto the map.
A score per click for gold, silver, copper, platinum, gemstones, tungsten and rare earths — with notes on what to look for.
Hillshade terrain helps reveal ridges, washes and creek cuts; GPS tracking, waypoint pins and one offline map area help once you leave service.
See where others are finding what — locations are fuzzed for safety. Comment, like, post your own discoveries.
BLM, Forest Service, NPS, BIA and private/unknown layers give you a fast public-data read on places worth researching — and places to verify first.
The map, every data layer, LiDAR terrain, multi-mineral scoring and the community feed are free forever. The 49ers tier adds the research stack a serious prospector actually uses: full BLM LR2000 claim-history search, advanced MRDS filters, unlimited offline maps, cloud sync, claim-watch alerts, custom clubs and bulk exports.