Sumpter is a town. There are claims for sale through local real estate agents, but for your safety you should assume that all land in the area is already someone's claim. You can, with a free permit available at the visitor center, pan for gold in the state park. You may only use one shovel, one pan, and one bucket. No metal detectors or dredges are allowed. Most of the land around Sumpter is National Forest or private property.
Unfortunately not. There are only very basic stores here that sell typical nuts and bolts. Best bet is to stick with online purchasing, especially with specifics.
Most of the dredging is mined with permits only from landowners or BLM
You would have to get with blm and see if there's a permit available
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