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Gem and mineral site

Lucky Strike thunderegg mine

Thundereggs, agate, jasper

A family-run pay-to-dig thunderegg mine in the Ashwood country north of Prineville, working beds that have produced for decades. They put you on a face with a bucket and you keep what you pull. This is the low-friction way into the hobby around Bend: no claim research, no gate problems, someone shows you what a good egg looks like before you swing at it. PRIVATE, seasonal, call ahead.

Where it is

Thundereggs, agate, jasper
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The source

https://en.wikipedia.org/w/index.php?search=Lucky+Strike+thunderegg+mine+Oregon

Nearby

Other places on the map within a couple of hours.