The federal record (USGS MRDS) lists 381 gold occurrences in Humboldt County — 157 of them past or active producers. Below is that record, readable: the documented sites, and the live map that puts claims, creeks, roads and geology under every one of them.
Open the Humboldt County gold map → Membership — first week free
Producers first, then prospects and occurrences — each links into the live map of that exact ground:
| Site | Status | Type |
|---|---|---|
| Chimney Creek Mine | Producer | replacement |
| Lone Tree Mine | Producer | — |
| Lone Tree/Stonehouse Mine Area | Producer | sediment-hosted gold |
| Marigold Mine | Producer | replacement; other; disseminated |
| Adamson Mine | Past producer | vein |
| Adelaide Crown Mines | Past producer | — |
| Adelaide Placer Mine | Producer | placer |
| Advance Mining Ltd | Past producer | — |
| Alabama Mine | Past producer | — |
| Amended Crofoot Placer Mine | Producer | placer |
| American Crofoot Placer Mine | Past producer | — |
| Amos Mill Site | Past producer | — |
| Aslett Placer | Past producer | placer |
| Atlas Mine | Past producer | — |
| Auto Hill Prospects | Past producer | vein |
| Awakening Millsite | Past producer | — |
| B & M Placer Mine | Producer | placer |
| Basin Placer | Past producer | placer |
| Basque Mine | Past producer | vein |
| Birthday Mine | Past producer | — |
| Black Rock Placer | Past producer | placer |
| Blackbird Mine | Past producer | — |
| Buckskin National Mine | Past producer | — |
| Canyon Placer | Past producer | placer |
| Chefoo Tunnel | Past producer | — |
| Cherry Gulch Mine | Past producer | — |
| Chimney Creek Deposit | Producer | — |
| Clipper Group | Past producer | — |
| Cowden Mine | Past producer | — |
| Darr Mine | Past producer | — |
Showing the top 30 of 381 recorded gold occurrences — every one is on the live map.
The free map shows every dot above. Membership opens the layers that turn dots into a plan — favorability at working zoom, active claims, land ownership, geology and the creeks that drain the known sources. The first 7 days are free.