ENFORCE31449

• Permit No: M1983141
• IBM Index Class Name: Enforcement
• Doc Name: MINERALS PROGRAM PROSPECTING 110 PERMITS & 110 UNPERMITTED SITES POSSIBLE VIOLATION CIVIL PENALTY PR
• Media Type: D
• Archive: No

estimated to be about the same for the Horsfal Flat location
as at any of the other locations that were evaluated.
The gently sloping topography of the Horsfal Flat site will
reduce operating costs by accommodating the construction of a
hillside plant with a straight-line flow sheet that will
eliminate the costly elevation of ore and material. Geologi-
cally, the millsite foundation will be supported by sta ble ~~
Boulder Creek granite. A review of the histor:
and a field examination of the area did not
underground mine workings that extended beneath
milling complex. The nearby Oscar mine shaft i
caved discovery shaft, without any Lateral worki
Wynona mine workings are inclined towards the no:
from the millsite.
Perhaps the major reason for the final selec
Horsfal Flat site, was its suitability for the
cient, and environmentally acceptable dispos i~
tailings that will result from the milling pre
mountain sites that were examined did not afford
nity to construct a hillside tailings struct
limited upstream drainage area. Finally, coi
tailings embankment northeast of the proposed rt
will have less visual effect on the landscape tha
other possible mountain sites.
Water rights for the mill have been obtained by the purchase
of 20 shares of stock in the Left Hand Ditch Company, which
entitles the Gold Hill Ventures Limited Partnership to a
pro-rata share of the water available from Left Hand Creek.
Based upon the historic diversions associated with these water
shares, the milling complex will be entitled to a minimum of
10.4 acre feet of water per year in a dry year, and a maximum
of 22.53 acre feet of water in a wet year. Gold Hill Ventures
intends to divert the water associated with these shares from
a point of diversion located on the south bank of Left Hand
Creek, on property which it is presently buying for this
purpose. These diversions will be made at a maximum rate of
50 gallons per minute during the irrigation season, which
extends from April 1 to October 31. A continuous measuring
device will be installed at the point of diversion. Access
will be granted to the Left Hand Ditch Company's representa-
tives, and to the State of Colorado's water officials, to
enable them to monitor the amount of water being diverted for
milling operations. .
From the point of diversion, the water will be pumped 3,900 ;
feet up Akins Gulch in a 2 inch diameter pipeline, that will
be situated on property being purchased by the Gold Hill ;
Ventures Limited Partnership. At a location 45 feet below I
County Road No. 52, the water line will enter the portal of ~
the Time mine's adit, which passes beneath the county road, ~
and extends 395 feet in a southeasterly direction. The Time
mine is connected with the first level of the Wynona mine by
way of a 50 foot deep winze. By constructing a bulkhead in
the Time mine, and pumping the water from Left Hand Creek
behind this bulkhead, both the Time and Wynona mines can 6e -
used for the underground storage of water for milling pur-
poses. Together, these two mines will have sufficient capac-
ity to store enough water to carry the milling operation
through the period between November 1 and [lay J1. Mill water
will be drawn from these mine workings by pumping water out of
the Wynona mine shaft. '~
The Gold Hill Ventures' concentration mill will be housed in a\
metal building 70 feet wide, 120 feet long, and 30 feet high,
with three separate working levels. A metal frame building
will be constructed on a concrete foundation with an upper
elevation of 8,590 feet, an intermediate elevation of 8,585 '~
feet, and a lower elevation of 8,575 feet (see Maps B2 and ~,
E2). The upper terrace will support the crushing plant and .
-8- ,~