INVENTORY FILE NO.
NAME OF PROPERTY
Burnt Timber (BT)
1993- Black Hawk Mining Inc.
2000 - 95 Wellington St.
Toronto, ON M5J 2N7
The Burnt Timber Pit is located within the Waskekwan Property, on the
north side of Waban Creek and approximately 300 m west of Shortie Lake. The
deposit lies within the hangingwall of the T1 fault, which is a post
mineralization fault. The T1 fault strikes east-northeast and dips steeply to
the north, running along the Johnson Shear. The Burnt Timber deposit is situated
in highly altered, deformed sequence of Waskewan group mafic volcanic and
metasedimentary rocks, Massive basalts in the area become carbonized, silicified
and develop primarily pyrite mineralizations towards the fault. The majority of
the gold mineralization is localized within shear laminated, mylonitic and
silicified metasediments, and mafic volcanic rocks, which occurs adjacent to the
T1 fault (Richardson; Ostry, 1996).
The metasediments and mafic volcanics
that contain the gold mineralizations contain occurrences of 1-5% disseminated
and fracture controlled pyrite, minor galena, chalcopyrite, and sphalerite.
Three different types of gold occurrences have been documented in the Burnt
Timber Deposit (Richardson, Ostry, 1996):
1.) The main gold mineralizations
are situated in the hangingwall, 40 m or less from the T1 fault. These zones are
well fractured or brecciated and form elongated north-dipping lenses. The gold
occurrences also contain abundant chlorite, carbonate, and pyrite.
grade, galena-bearing quartz veins containing foliation-parallel pyrite occur
primarily in the eastern end of the deposit, but can occur throughout as
3.) High grade, narrow, foliation parallel, intensely silicified,
laminated shear zones, occur up to 3m wide in to the hangingwall. The shear
zones can locally contain up to 200grams/tonnne (g/t) gold (Au).
footwall, on the south side of the fault, consists of gabbro, variably altered
basalts, metasediments or metavolcanic tuff (Richardson, Ostry, 1996).
Reserve was defined, in 1988 by Lynngold, to have 997 000 t (1.1 million tons)
grading 3.8 g/t (0.111 oz/ton) and has been delineated to a depth of 122 m (400
ft.) Additionally, a zone of lower grade envelopes the deposit consisting of 1.9
million t (2 146 941 tons) grading 12 g/t (0.034 oz/ton) Au (Lynngold Resources
Press Release, October 19, 1988).
MINERALS OR PRODUCTS OF VALUE
EXPLORATION AND DEVELOPMENT
The Burnt Timber (BT) property was discovered in 1988, by TransAmerica
acting on an option from Sherrgold to carry out $3 million in exploration to
earn a 49% interest on the Wasekwan Property, on which Burnt Timber is located.
7735 m (25 377 ft.) of diamond drilling was carried out by Lynngold in 1988,
delineating the deposit to 122m (400 ft.) Sherrgold, under the new ownership of
Hayes Resources, changed its’ name to Lynngold in late 1988 (Northern Miner, May
LynnGold put forth plans for a feasibility study on the deposit, to
be completed late 1989 (Northern Miner, May 30, 1989). Lynngold declared
bankruptcy in 1989, following the closure of the MacLellan mine (See: Mind No.
640), all assets including the BT deposit was held in trust by DCC
No further work was completed until 1993, when Black Hawk Mining
Inc. purchased the property, as part of the Keystone Gold Project (Black Hawk
Mining Inc. Annual Report, 1993). Granduc Mining Corp. (formerly Cazador
Exploration Inc.) administered a deal for the option to earn up to 50% interest,
by investing $10 million in the project.
Four diamond drill holes were
drilled, in early 1993, intersecting two bodies of ore along the Johnson Shear.
Drill hole W8952 intersected a large orebody returning 23.8 m at 5.18g/t. DH
W88114 intersected the same body returning 19.8 m at 4.42g/t. The next two drill
holes, W8855 and W88115, both intersected the larger ore body and a smaller
lens. W8855 intersected the smaller lens first, returning 7.9 m at 4.32 g/t,
then intersected the larger orebody returning 13.7 m at 6.89 g/t. W881155 also
intersected the smaller lens first, returning 2.1 m at 6.69 g/t, and then
intersected the larger orebody, returning 14.0 m at 2.61 g/t (See Figure
In September 1993, with reserves at 3.2 million t grading 2.37g/t, Black
Hawk commenced open pit production on the deposit. In 1994, production reached
its target rate of 1088 t (1200 tons) per day. In early 1996, Granduc and Black
Hawk amalgamated into one company under the Black Hawk name for 100% ownership
of the BT deposit (Northern Miner, February 2, 1996). Mining was completed at
the BT pit, in June 1996 and all mining operations were transferred to the
nearby Farley Lake mine (See: Mind No. 996).
As of 2002, the property held by
Black Hawk, but no further work is being completed. Resources stand at 1.0
million t grading 2.9 g/t, for a total 2940 t (94 500 oz) Au (Black Hawk Mining,
Annual Report, 1998).
Year Ore Milled Grade Produced Gold
1993 (1) 73 174 3.24 6 107
1994 351 506 2.71 26 664
1995 432 374
2.36 25 508
1996(2) 468 252 3.22 41 619
All Statistics from Black Hawk
Mining Inc. Annual Reports 1993-1996)
Production statistics from after
2 Production statistics shared with Farley Lake mine (See:
Mind No. 996)
Black Hawk Mining Inc. 1993: Annual Report; Black Hawk Mining
Black Hawk Mining Inc. 1994: Annual Report; Black Hawk Mining
Black Hawk Mining Inc. 1995: Annual Report; Black Hawk Mining
Black Hawk Mining Inc. 1996: Annual Report; Black Hawk Mining
Black Hawk Mining Inc. 1997: Annual Report; Black Hawk Mining
LynnGold Resources Inc. 1988: Press Release Burnt Timber Drill
Results; LynnGold Resources
Inc. October 19, 1988.
1987: Sherritt Gordon to sell its mining assets; Northern Miner May 4,
Northern Miner 1988: Open pit reserve outlined by Lynngold in
Manitoba; Northern Miner,
October 31, 1988.
Northern Miner 1989:
LynnGold eyes market to raise $4.3 million; Northern Miner, May 30,
Northern Miner 1996: Black Hawk and Granduc Mining sign merger
deal; Northern Miner
February 2, 1996.
Richardson, D.J.; Ostry, G.
1996: Gold Deposits of Manitoba, Manitoba Energy and Mines,
Black Hawk Mining Inc. 1997: Figure 1, Johnson Shear Project 1: 50 000
scale, plan view,
accompanying Black Hawk Mining Inc. Annual Report,
Black Hawk Mining Inc. 1993: Figure 2, BT Deposit; 1: 2 000 scale,
cross section map,
accompanying Black Hawk Mining Inc. Annual Report,
Surveys and Mapping Branch, Ottawa 1985: Map 64 C/15, Cockeram
Lake; Surveys and
Mapping Branch, Ottawa, topographic map (2nd Edition),
scale 1:50 000.
Location of pit determined by comparison to Johnson Base Project, Plan
view (See: Figure 1), in Black Hawk Mining Annual Report, 1997.