BLM claimant record
CYPRUS THOMPSON CREEK C/O THOMPSON CREEK MINING CO
Active unpatented mining claims held on US federal land, from BLM's public Mineral & Land Records System. Earliest active claim located 1967-01-23.
Claims by state
| State | Active claims |
|---|---|
| ID | 1,000 |
Claim types
| Lode | 882 |
| Tunnel Site | 106 |
| Mill Site | 12 |
2026 maintenance estimate
At ~$200/claim, this portfolio's BLM maintenance runs an estimated $200,000 — due September 1, 2026, or the claims void. Estimates from public records — see the full deadline guide and get reminders.
Source: BLM MLRS public records, as of 2026-07-03. Counts reflect claims where this exact claimant name appears of record; related entities filing under other names are listed separately. Corrections: [email protected]