Historic
Trinity County, CA
Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
The La Grange (Oregon Mountain) claims operated from the 1860s and became California's largest hydraulic gold mine after 1892 investment in long ditches from Stuart's Fork. Work continued into the 1910s. A highway pullout and landmark plaque on State Route 299 west of Weaverville mark the scarred slopes and remaining equipment.
| Region | Trinity County, CA |
|---|---|
| Coordinates (approx.) | 40.7410, -122.9906 |
| ARPA | Cultural sites and artifacts are protected by federal law (ARPA/NHPA) — stay on established routes, touch and remove nothing, and follow the managing agency's and the affiliated tribe's guidance on access. |
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Plan ahead. Leave no trace. Verify current access before traveling.