United States · Jurisdiction guide
Mining tenement data & monitoring in Nevada
Nevada is the United States' premier hardrock mining state, and most of its ground is federal public land. Claims are located under the General Mining Act of 1872, recorded at the county and with the BLM in the Mineral & Land Records System (MLRS).
How mining claims work in Nevada
Nevada's mineral estate is dominated by federal public land managed by the BLM, so most claims are located under the General Mining Act of 1872. The system is self-initiated: a prospector discovers a valuable mineral deposit, locates a claim on open ground, records it with the county recorder, and files with the BLM. Lode claims cover veins or lodes in place; placer claims cover unconsolidated deposits.
Claims are maintained by paying an annual maintenance fee (or, for very small claimants, performing assessment work and filing a waiver). Miss the maintenance requirement and the claim is forfeit - which is precisely when ground reopens for others.
Where to find Nevada claim data
The BLM's MLRS is the federal system of record: it maps active and closed claims to at least the quarter-section, records maintenance-fee payments and case dispositions, and links to General Land Office land-status records. Importantly, because the original record of location sits with the county recorder, MLRS is a secondary record - thorough due diligence checks both.
This two-layer record is a defining feature of US claims. It provides transparency, but it also means a complete picture requires reconciling federal MLRS data with county records rather than relying on one source.
Monitoring maintenance and forfeitures
The annual maintenance-fee cycle makes US claims unusually predictable to monitor: a large share of forfeitures cluster around the fee deadline each year, reopening ground in well-explored districts. Claim closures and new locations are visible in MLRS as they are processed.
For explorers, watching maintenance status and dispositions across a district is a systematic way to catch ground opening up next to known deposits - the kind of nearology that drives much Nevada activity.
What this means for exploration teams
In Nevada, the edge is in watching the maintenance cycle and the federal-plus-county record closely, then acting quickly on forfeited or newly located ground. Doing that manually across MLRS and multiple county recorders is laborious and easy to miss.
Xplore360 Land Monitoring is designed to track claim status and dispositions continuously, flag ground opening around your targets, and assemble the context needed to move - including the public geoscience that makes a claim worth having.
Tenement types in Nevada
Governed by the General Mining Act of 1872 (30 U.S.C. 22-54).
Lode claim
A claim on a vein or lode of mineralised rock in place; federal limits are 1,500 ft along the vein by 600 ft wide.
Placer claim
A claim on unconsolidated deposits; up to 20 acres per locator, and up to 160 acres for an association placer.
Mill site
Non-mineral land used for milling or processing associated with a claim.
Tunnel site
A right to locate blind veins discovered while running a tunnel.
FAQ
Nevada tenement FAQs
Common questions about Nevada mineral tenure, registries and monitoring.
- How do I look up mining claims in Nevada?
- Use the BLM's Mineral & Land Records System (MLRS) to map federal unpatented claims and view maintenance-fee and disposition records. Because the original location is recorded at the county, complete searches also check the relevant county recorder.
- What types of mining claims exist in Nevada?
- Under the General Mining Act of 1872 you can locate lode claims (veins or lodes in place, up to 1,500 by 600 feet), placer claims (up to 20 acres per locator), mill sites and tunnel sites on open federal land.
- When do Nevada claims typically become available?
- Claims forfeit when the annual maintenance requirement is not met, so forfeitures often cluster around the fee deadline. Xplore360 Land Monitoring can watch MLRS dispositions to flag reopening ground.
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