Polygon layer · Minerals & Subsurface
BLM mining claims and who holds the ground
Active mining claims on federal land — who already staked it.
BLM mining claims are a land tenure layer, not a geology layer, and they are drawn as hollow rings for exactly that reason. A deposit under an active claim is someone else's deposit, and the claim record is the cheapest way to find that out.
- Source
- BLM
- Refresh
- Weekly
- Geometry
- Polygon
- Included from
- Complete ($499/mo)
Why BLM Claims matters
Claim staking is the earliest visible move in a mineral play — it happens long before a drill program, a permit or a press release. Watching who is staking and where is a legitimate read on where the next district is forming, and it is entirely public.
Questions BLM Claims answers
- Is this ground already claimed, and by whom?
- Where has claim staking accelerated in the last year?
- Which claimants are quietly assembling a position in this district?
- Are there open gaps inside an otherwise staked block?
What is in the BLM Claims data
Coverage: Federal land across the western US. Source dataset: Active mining claims (LR2000 lineage).
| Field | What it tells you |
|---|---|
| Claimant | Name of record on the claim. |
| Claim type | Lode, placer, mill site or tunnel site. |
| Claim name | As filed with the BLM. |
| Location date | When the claim was staked, the seniority marker for claim disputes. |
How we serve BLM Claims
We query the primary and fallback BLM endpoints in parallel and take the fastest non-empty result, which halved worst-case latency. Empty responses are never cached, so a transient upstream failure cannot poison the layer into looking like unclaimed ground.
BLM mining claims — source, refresh and coverage
- Steward
- BLM
- Dataset
- Active mining claims (LR2000 lineage)
- Refresh cadence
- Weekly
- Coverage
- Federal land across the western US
- Records
- 579,902 rows
- Geometry
- Polygon
- Included from
- Complete ($499/mo/mo)
Who uses BLM Claims
Mining & Exploration
Deposits, active claims, protected land and the water to run a mine — on one map.
Water Rights Investing
Price seniority, spot the mismatch between paper water and wet water, and find positions before they are listed.
Legal & Title Diligence
Authoritative records, chain context and export-ready evidence for adjudication and title work.
Read BLM Claims alongside
Mine Locations
USGS MRDS mines and deposits, filterable by commodity.
Protected Areas
PAD-US conserved lands by GAP status — what is off the table, and what only looks like it.
Oil/Gas Leases
Federal oil and gas lease parcels and their status.
Water Rights
2.1M+ adjudicated water rights across 17 western states, on one map.
Terms used on this page
See BLM Claims on the map
This layer is included from Complete ($499/mo) upward, alongside every other layer in the Complete coverage.