SOURCE RIGHTS AND ATTRIBUTION

Reviewed 2026-10-03. Source: U.S. Department of Labor, MSHA Open Government Data, https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp . DOL federal works are generally public domain and may be reproduced/distributed with attribution: https://www.dol.gov/general/aboutdol/copyright . This product reuses published factual mine and filing records and excludes third-party copyrighted attachments, imagery and government seals. No exclusive rights in the underlying facts and no DOL/MSHA endorsement are asserted.

The raw manifest retains complete archives, original URLs, retrieval dates, byte counts and SHA-256 hashes. Columns are selected and renamed; published values and missingness are preserved. Current Active registration defines the mine population. Historical activity and relationship rows are retained for that population, with activity limited to 2020 onward. Names classified PERSON in MSHA controller history are withheld in delivery; source business names can contain proprietor names. Published addresses are not marketing consent.
