BLM National Mining Claims (MLRS) Scraper

Pull the United States' national inventory of mining claims straight from the Bureau of Land Management's Mineral & Land Records System (MLRS) — every lode, placer, mill-site and tunnel-site claim on federal land, active or closed, as a clean structured dataset you can filter, map and export.

Built for mineral explorers, land men, title researchers, royalty and mineral-rights investors, and market analysts who need to know what ground is staked, where, and when.

What you get

One row per mining claim, including:

• Serial number — the unique BLM case number (e.g. NV105216280)
• Claim name — as staked and recorded (e.g. GOLDEN ARROW #1)
• Claim type — Lode Claim, Placer Claim, Mill Site or Tunnel Site
• Disposition / status — Active, Closed, Void, Relinquished, Expired, and more
• Recorded acres
• PLSS legal description — full meridian / township / range / section / aliquot parts, plus parsed meridian, township, range and section fields
• State
• Recorded (created) and last-modified dates
• Map location — approximate centroid latitude/longitude, and optionally the full claim boundary polygon as GeoJSON
• MLRS lookup URL — a direct link to the BLM case-search page for that serial number

Filters

• Claim status layer — active (not closed), closed, or both
• US states — one or many (Nevada, Arizona and California hold the most claims)
• Claim types — lode, placer, mill site, tunnel site
• Disposition / status
• Claim name keyword — e.g. GOLD, LITHIUM, or a project name
• Serial numbers — look up exact claims directly
• Recorded-date range — catch newly staked ground
• Recorded-acres range

Every filter is applied at the source, so runs are fast and you only pay for the claims you actually want.

Output

JSON, CSV, Excel, or via the Apify API. Ready for GIS (the centroid and optional GeoJSON boundary drop straight into a map) and for spreadsheets.

Good to know

• This is the claim/case record — serial number, name, type, status, acreage, legal description and geometry. The claimant/owner name is not published in this layer; it lives in the MLRS case detail. The detailSearchUrl on every row links to the BLM lookup for that serial number so you can pull the owner where needed.
• County is not a field in the source data; location is given as PLSS legal description plus map coordinates.
• Public BLM data. No account or API key required.

Pricing

Pay per result — you are charged only for claims actually returned, never for a failed or empty run.