Proposed safety closures of open pit shafts or open adits at abandoned or inactive mine sites. Openings would be closed with backfill, plugs, polyurethane foam, grates, or bulkhead construction. Each of the five sites is a small surface area.
Location
Five sites on Leadville Ranger District - see map
Project timeline
1
Scoping Start
06/17/2025
2
Decision
12/2025 (Estimated)
3
Implementation
06/2026 (Estimated)
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (8), 36 Cfr 220.6(E)(8); 32.2 (25), 36 Cfr 220.6(E)(25) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Abandoned Mine Land Clean-Up |
| Wandering Prospector AML Safety Closure | Decision Signed Date: 12/17/2025 |
| Forests | Pike and San Isabel National Forests and Cimarron and Comanche National Grasslands |
| Districts | Leadville Ranger District |
| Legal Land Description | T8S, R80W, Section 23; T11S, R80W, Section 1; T12S, R81W, Section 27 |