Colorado Division of Reclamation, Mining and Safety
State AgencyCO
Aug 10, 2026
Closes
Sep 9, 2026
PKAA, DRUM Little Long North Project RFP
The DRUM Little Long North Project consists of safeguarding 35 mine features including (2) prospects adits, (29) adits, (1) shaft, (1) vent/stope, and (2) subsidence features. Closure methods will include: grates, corrugated steel pipes, backfill polyurethane foam, cable nets, bulkheads.