The federal record (USGS MRDS) lists 52 gold occurrences in Union County — 11 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 Union 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 |
|---|---|---|
| Camp Carson Placer | Producer | placer |
| Carson Hill Placers | Past producer | placer |
| China Diggings | Past producer | placer |
| Grande Ronde Mines | Past producer | — |
| Placer Tailings | Past producer | placer |
| Rainbow Mine | Past producer | placer |
| Stibnite Mine | Producer | — |
| Twin Baby | Past producer | — |
| Afterthought Claims | Prospect | — |
| Bone Ridge Placer | Occurrence | placer |
| Boulder Creek Placer | Occurrence | placer |
| Boulder Creek Placer Prospect | Occurrence | placer |
| Camp Carson | Occurrence | — |
| East Fork Grande Ronde River | Prospect | placer |
| Gold Occurrence | Occurrence | — |
| Gold Prospect | Occurrence | — |
| Grull Mine | Prospect | — |
| Harry Peoples Prospect | Prospect | — |
| Hidden Lake Prospect | Prospect | — |
| Indianna | Prospect | — |
| Jim White Ridge Placer | Occurrence | placer |
| Rainbow | Occurrence | placer |
| Unnamed Prospect | Occurrence | — |
| Worthing Prospect | Unknown | — |
Showing the top 24 of 52 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.