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374 facts · 512 sources · updated 2026-09-30

Fact mine-021

newrecordconfirmed The 1872 Mining Law opens federal land, not state or private land, to mineral claims
1872-05-10 · mine-021 · U.S. Congress

30 U.S.C. 22, from the Mining Law of 10 May 1872, declares valuable mineral deposits in lands belonging to the United States free and open to exploration and purchase by citizens, under federal law and local mining customs, 'except as otherwise provided'. The statute reaches only land of the United States; the Wellington parcel (Sec. 16) is state trust land (mine-010, mine-034), so a federal mining claim cannot be staked on it.

In plain termsA U.S. citizen can stake a mining claim on open federal land and look for minerals there without buying it first. But the law covers only federal land. The Carbon County parcel the state approved leasing to Valar is state school land, so a federal mining claim cannot be staked on it.
verified 2026-09-29: Re-read 2026-09-29 on uscode.house.gov: text and 10 May 1872 source credit match; quote exact. Plain field corrected from 'anyone' to citizens, as the statute says. Correction 2026-09-29 (wording review): lease wording now 'approved leasing'.

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