Mining Claim (MC)
A mineral entry and appropriation of public land under the Mining Law Act of 1872, as amended (30 U.S.C. 22 et seq.). There are four types of mining claims; lode claims, placer claims, millsites and tunnel sites. Only tunnel sites may not be patented. A valid lode or placer claim contains a discovery of valuable mineral deposit subject to location under the Mining Law of 1872. A valid millsite is one that is being used for the support of a mining or milling operation. A valid tunnel site is one that is being diligently worked and maintained. (ALSO SEE CLAIM)
A parcel of land, probably containing valuable mineral in the soil or rock and appropriated by an individual according to established rules by the process of "location." Located by the claimant, not surveyed.