Look up federal mining claim records for a Public Land Survey System section

domain: BLM Mineral & Land Records System (MLRS) · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Access reports.blm.gov/reports/MLRS or navigate via mlrs.blm.gov's "BLM Reports" link.
  2. Search/report by state, county, or PLSS township-range-section to list mining claims and related case types (fluid minerals, solid minerals, land use authorizations).
  3. Alternatively, retrieve the downloadable MLRS Data Set for use in GIS software (ArcGIS Online Map Viewer or equivalent) when bulk spatial data is needed.
  4. Note that MLRS supersedes the legacy LR2000 Mining Claim Recordation Module, which was phased out as of January 25, 2021 in favor of MLRS plus Pay.gov for online mining claim transactions.
  5. Cross-reference claim/serial numbers against the case type codes documented in BLM's "Ten Things to Know About the MLRS Mining Claims Module" post before interpreting status fields.

Known gotchas

Related routes

Look up Public Land Survey System township/range/section boundaries for a site using the BLM National PLSS Cadastral ArcGIS REST service
gis.blm.gov · 5 steps · unrated
Retrieve MSHA mine ownership, inspection, and violation history for a specific mine ID
MSHA Mine Data Retrieval System (MDRS) · 5 steps · unrated
Query mineral deposit records (MRDS) within a geographic bounding box
USGS MRData API (Mineral Resources Data System) · 5 steps · unrated

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