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General/Base Info:
Delmonico Dump Mill
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Info Last updated: 09.04.2022 (08:12:40)
Id No. (Mine / 1902 map):
2206
Type:
Cyanidation Mill
Date Located / Formed:
1909
Location:
Bull Cliff / Bull Hill
Location Map Description:
Discovery / Formed by:
    Status:
    Unknown
    Fate details:
    Owned by:
      Known claims:
      • Delmonico lode - 8045
      Location Claim Description:
      Patented Date:
      Mineral Certificate No.:
      0
      General Land Office No.:
      0
      Known Transportation Connection:
        Extra Info/Details [Linked at One Time to the Entity]:
        Cyanidation Mill
        Known Producing Info:
        General notes:
        A note published in Mining Science of August 5, 1909 gives this info;
        graphic for visual presentation of text A small milling plant has been installed below the lower dump of the Delmonico mine and an attempt to recover the gold from the waste pile is being made. Two solution tanks, precipitate boxes and small gasoline engine for pumping constitute the entire plant.
        graphic for visual presentation of text The dump will be treated without crushing ore or removal. That part of the dump to be treated is first subject to saturation, so that the ground on which the dump is located may absorb all possible moisture.
        graphic for visual presentation of text The surface of the dump is then covered with lime and a strong solution of cyanide is sprinkled over it. This solution percolates the dump and is caught in a cement trough at the base of the waste pipe.
        graphic for visual presentation of text It is carried thence by pipe to the zinc precipitate boxes, the overflow is caught in a large tank and sunk to the solution tank on top of the dump.