Mining Claims and Mineral Rights

What a mining claim actually gives you

In the US, mining claims come from the General Mining Law of 1872. It lets citizens and US companies stake claims on federal land that is open to mineral entry, mostly land managed by the Bureau of Land Management and the Forest Service, for locatable minerals such as gold, silver, copper and many others.

An unpatented claim gives the right to explore for and mine those minerals. It doesn’t give ownership of the land. The surface stays federal, other people may still use it for recreation or grazing, and you’ll usually need an approved notice or plan of operations before disturbing the ground beyond casual use. Many buyers miss this point: a listing for “mining claims for sale” in California, Colorado or Idaho is usually selling this right to mine, not a piece of land.

Lode, placer and patented claims

Patented claims are private property, bought and sold like other land, and pay property tax in place of federal claim fees. Congress has blocked new patent applications through an annual funding moratorium since 1994, so the patented claims on the market today were all patented long ago. Our guides to how patented claims work and to buying a patented claim in Colorado go into the details.

Recording and keeping a claim

Staking a claim means marking its boundaries on the ground as your state requires, then recording it with the county and filing it with the BLM within 90 days of the location date. After that, the claim has to be maintained every year. Most holders pay an annual maintenance fee per claim to the BLM by September 1. Holders of ten or fewer claims can apply for a small miner waiver and do a set amount of assessment work instead. Miss the fee or the filing and the claim is generally forfeited by law, so most holders put the deadlines in a calendar well ahead.

The BLM’s Mineral & Land Records System shows active and closed claims on a map, which is the quickest way to see whether ground is already taken. Our guide on finding and filing BLM gold claims walks through the search and the filing steps.

Legal considerations when buying a mining claim

Buying a mining asset, whether a single placer claim or a patented gold mine, comes down to confirming what you are getting and what comes with it. Before paying, check:

• That the claim is active in BLM records and every annual fee or waiver was filed on time.
• That the seller’s chain of title is complete, and the transfer will be recorded with the county and filed with the BLM.
• Whether any overlapping or older claims cover the same ground.
• Whether the land is still open to mineral entry, since wilderness areas, some monuments and other withdrawals close it to new claims.
• Legal access by road or trail, and who owns the surface if it is a split estate.
• Existing royalties, liens or option agreements on the claim.
• Environmental liabilities from old workings, tailings or water discharge.
• Whether there is any evidence of mineralization worth mining.

The last point is often the weakest part of a listing. Our satellite mineral detection service can screen a claim block before you buy, ranking Exploration Targets from optical, radar, thermal, terrain and magnetic data. It is a first look ahead of sampling and drilling and of any JORC or NI 43-101 estimate, never a replacement for them. Our page on satellite gold exploration in the United States shows how this works on US ground.

Mineral rights and the mineral acre

On private land, minerals can be owned separately from the surface, which is called a split estate. A mineral acre is the full mineral interest under one acre of land. If you own half of the minerals under 100 acres, you own 50 net mineral acres. Buyers and lease offers are usually priced per net mineral acre, and royalty terms in an existing lease affect the value as much as the acreage does. Our guide to what mineral rights are worth per acre explains the rules of thumb buyers use.