Mining claims (open)

Unpatented mining claims whose BLM case is not closed (active, filed or under review).

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About this data

Published by: Bureau of Land Management, MLRS
Method: Downloaded from the agency’s public GIS service and split into county files.
Update frequency: Monthly
Last updated: Oct 5, 2026
Records: 18,410
Coverage: Counties with open claims.
Records in 29 of 56 counties.

Known gaps

Shapes are the quarter-quarter sections BLM maps each claim to, not surveyed corners.

Preview

The newest or first 500 records. Click a column heading to sort. Use the filter to find a place or a name.

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Fields

Field	Column	Description
County	`county`
Name	`nm`
Type	`ty`
Source	`sn`	Water source name.
Legacy serial	`lsn`
Case record	`sf`
Disposition	`dsp`
Acres	`ac`
Last action	`mod`
Legal land description	`lld`
Longitude	`lon`	WGS84 degrees.
Latitude	`lat`	WGS84 degrees.

Downloads and links

County files (JSON)JSON 29 county part files listed in the index
Full searchable tableall records, filter by county, export CSV
Metadata (JSON)metadata for this page, for programs

Data 4 MT is an index of public records. It republishes only what Montana and federal agencies make public, with a link to the source on each record. People are shown as “Private individual” on public pages and downloads; companies, trusts held by institutions, and governments keep their names. No document images, sale prices, voter, MVD or wildlife-telemetry data are stored. Verify any record against the publisher’s copy before relying on it.