MINEBK00787

• County: Fremont
• Document: FROMSIC
• Suffix: A

TABLE TWO -- FREMONT COUNTY
MINE NAME COMMENTS ON FEATURES
Caldriola No. 2 Reclamation Fall 1983 -- Backfill the ad it with riprap riprap and on-site waste material.
Disturbed areas will be topsoiled, revegetated, and fenced.
Caldwell S: Subsidence trough and subsidence pits. Trough is 60' long, 2' wide, 3' to 4' deep; due to
collapse of incline entry. Subsidence pits range in size from 5' to 30' in diameter, 2' to
4' deep; due to collapse over rooms.
Gas explosions in 1885, 1886, 1888 (reference 2)
Reclamation Spring 1983 of subsidence involved conventional excavation and backfilling
techniques. The incline was filled using riprap, fill material from nearby waste banks
and topsoil. Mine site will be revegetated and fenced during the fall of 1983.
Canon Black S: NW of Canon Black Diamond entrance. Subsidence pits ranging from 12' to 30' in length,
Diamond 8' to 15' in width, 5' to 12' in depth; pits due to collapse over rooms.
Canon City *: (Across arroyo from Canon City)
(Spring Canon) Horizontal opening. Opening of ad it is 4' high by 4' wide; adit goes into hillside an
(Brook Canon unknown distance; bedrock roof inside mine is only partially collapsed; entry in good
(Grand Prize; condition, barbed wire across entry in poor condition. Access deterrence poor.
(Canon Red star)
Reclamation awaiting landowner consent; backfill the main incline, seal the ventilation
ad it with either concrete blocks or a concrete slab, and use controlled blasting to close
the third ad it. Any depressions requiring backfilling will use on-site material except
perhaps for some imported riprap. All backfilled areas will be topsoiled and revegetated.
Key to unique features symbols:
Reclamation and/or plans -- Table Two
lists hazard abatement work
+ Discrepancy between two sources
Z Multiple mining zones
* Mine opening information
S Subsidence features
F Mine fires
D Mine drainage
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