MINEBK00961

• County: Jefferson
• Document: FROMSIC
• Suffix: A

TABLE TWO -- JEFFERSON COUNTY
MINE NAME COMMENTS ON FEATURES
Murphy No. 1 S: Subsidence trough. A trough 70' long, 10' wide, and 7' deep marks the former ad it of this
mine.
Murphy No. 2
New Little
White Ash
New Loveland
New Mine
S: Subsidence trough and pits. A subsidence trough 600' long, 500' wide, and 5'-10' deep lie:
on the south-facing slope overlooking Ralston Creek. A pit 20' across and a 10' deep and
other smaller pits occur on the pediment surface north of the trough. Shaft site is locates
on terrace at foot of south-facing slope and is a pit 20' across and 5'-10' deep.
S: Subsidence pit. A small pit 10'-15' across and 2'-3' deep overlies the shaft of this mine
Z: Reference 2 notes that a west and an east bed were worked.
S: Subsidence pit. A pit 10'-15' across and 2'-3' deep overlies coal mine shaft. Subsidence
pit. Small pit 5'-10' in diameter and 4' deep overlies collapsed stope of New Loveland
Mine.
*: Horizontal and inclined openings. Portal of inclined opening is 5'-10' wide and 10' high;
incline intact for about 50' underground. Horizontal opening is entry to intact under-
ground stope whose roof is only 4' thick. Stope is 10' long, 25' wide, and 10'-15' high.
No access deterrent. Lies within a few hundred yards of Golden city limits.
*: 47'-100' depth. Mine shaft 97' deep. Soil and rubble filled the shaft to 45'; below that
point the shaft is apparently open. This information and the "New Mine" name were assigned
to this mine by Dames & Moore in a subsidence investigation of the Rubey Clay property in
Golden, Colorado (Aug. 30, 1983).
Reference:
Dames and Moore, 1983, Rubey Clay -- Mine Subsidence Hazard Study, Golden, Colorado. For
Adolph Coors Company. 51 p.
Key to unique features symbols: Z Multiple mining zones
* Mine opening information
Reclamation and/or plans -- Table Two S Subsidence features
lists hazard abatement work F Mine fires
+ Discrepancy between two sources D Mine drainage _19_