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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  09-Jun-2020 by Nicole Barlow (NB)

Summary Help Help

NMI 082F6 Au3
BCGS Map 082F044
Status Past Producer NTS Map 082F06W
Latitude 049º 28' 08'' UTM 11 (NAD 83)
Longitude 117º 22' 52'' Northing 5479652
Easting 472387
Commodities Silver, Gold, Lead, Zinc, Copper, Cadmium, Tungsten Deposit Types I01 : Au-quartz veins
L03 : Alkalic porphyry Cu-Au
I02 : Intrusion-related Au pyrrhotite veins
Tectonic Belt Omineca Terrane Quesnel
Capsule Geology

The Kenville (formerly known as Granite-Poorman) mine is located on the east side of Eagle Creek and the north slope of Toad Mountain, 8 kilometres west of Nelson.

The area is underlain by the Eagle Creek Plutonic suite, consisting mainly of gabbro and diorite with quartz monzonite to hornblende syenite phases present. All phases are medium- to coarse-grained and locally gneissic with varying degrees of alteration. The dominant regional structural features are broad, north-trending and east-verging folds. Quartz veins occupy gravity fault planes and cut the diorite hostrock along a northwest trend and dip 45 degrees to the northeast. Flat quartz veins occupy tension fractures created by movement along northwest-trending faults. The veins are cut by faults, some of which are occupied by lamprophyre dykes. Because they occupy regional fault planes, the quartz veins have exceptional continuity along strike and downdip.

The Kenville mine has been classified as a gold-quartz vein deposit. The mine workings include five north-northwest–trending veins hosted in variably sheared mafic intrusives. These five veins are part of the Granite-Poorman veins, which consist of six main veins and several secondary or less continuous veins. The veins strike 330 to 350 degrees, dip approximately 45 degrees northwest and have an average thickness of 0.6 metre, although they are more commonly 0.02 to 0.1 metre wide. From west to east, over a horizontal distance of 518 metres, they are the Hardscrabble, Poorman, Greenhorn, Granite (or White) and Beelzebub veins. Lesser veins occur to the east and west. The veins consist of milky to glassy quartz with pyrite and chalcopyrite occurring as the dominant sulphides. Minor galena, sphalerite, scheelite and visible gold occur within the veins. Reports from earlier development mention “rich pockets” of visible gold. Where the veins are oxidized, limonite is common with some "free gold". Scheelite is widely distributed as individual grains but rarely as significant concentrations in any given zone. Sulphides are commonly disseminated in hanging wall or footwall rocks. Ore shoots, which rake to the south, are formed at the intersection of the main veins with flatter lying offshoots; high gold values in these shoots appear coincident with galena. Hostrocks exhibit replacement of plagioclase by soda-potassic feldspar and alteration of ferromagnesian minerals to biotite and epidote.

At the Hardscrabble vein, steeply dipping faults drop the eastern block down as much as 15 metres. The largest fault has produced offset of approximately 100 metres to the left in the Granite and Greenhorn veins. Local structure is dominated by the northeast to northwest-trending, south-plunging Hall Creek syncline. To the north of the project area, a series of northwest-striking shears form a 1-kilometre-wide zone known as the Silver King shear.

Numerous adits and underground workings, most dating from the turn of the 19th century, are present on the property. The main mine workings consist of seven levels. The mine is developed from two main levels, the 2570 or lower (257 Level), and the 2750 or upper (275 Level) adits. Underground workings are extensive. The five main veins have been stoped for a combined length of over 915 metres.

The Kenville Mine was the first underground lode gold mine in British Columbia and was the largest producer in the Nelson Mining Camp Project claims. The first claims on the Granite-Poorman property were staked by I. Neil in 1888. In 1889, Eagle Creek Mining Company began milling ore from five northwest-trending veins on the northeast corner of the modern Kenville mine property. Tungsten, copper and cadmium are also present but have never been recovered in significant amounts. From 1900 to 1929, the property changed ownership seven times; from 1904 to 1929, the mine was worked almost exclusively by lessees. The property was owned and operated by these companies, in the following order: Eagle Creek Gold Mining Co., Granite Gold Mines Ltd., Duncan United Mines Ltd., Kootenay Gold Mines Ltd., Kootenay Gold Exploration Co. Ltd., Inland Mining Co., Granite-Poorman Mines Ltd. and Granite-Poorman Gold Mines Ltd. In 1932, the property was acquired by Livingstone Mining Company. The mine continued to operate intermittently until 1944.

In 1945, Kenville Gold Mines Ltd. (owned by Noranda Mines Ltd.), acquired the property and proceeded with an exploration and development program that included building a 125-tonne per day cyanide mill. Over 6096 metres of diamond drilling were completed on the Granite-Poorman property, partially from the surface in a search for hidden veins and the remainder underground to search for extensions of known veins. The mine ceased operations in 1949, though small amounts of high-grade ore were shipped to the Trail smelter in 1960 and 1961. The mill remained in operation until 1962, processing feed from local small-scale mining operations. Upon decommissioning in 1962, the mill was shut down and all usable equipment was removed from the site.

In 1969, the property was acquired by Algoma Industries and Resources Ltd. Algoma attempted to restart mine production, re-opening the 257 Level and dewatering the mine. Further efforts maintained the mine open, rebuilt the mill and attempted production. These efforts failed and in 1987 the property was sold to Coral Industries Ltd. In 1989, Coral Industries exercised their right to operate the mine, took over the care and maintenance program and began an assessment of milling operations. Production was dedicated to testing milling operations. Testing indicated the mill was not properly designed for the ore and that flotation might be a preferred recovery method. That same year, the Kenville property was amalgamated with the Venango property (082FSW087) to the west. In 1980, DeKalb Mining Corporation completed 2932 metres of diamond drilling on the Venango-Shenango and Greenwood claims. One drillhole near the Venango mine returned 11 metres of 1.01 per cent copper and 15.2 grams per tonne silver with minor gold and molybdenum (Assessment Report 24303). In 1991, Coral Industries shipped a small tonnage of ore to the Trail smelter for processing and undertook a test pit sampling program to assess metallic and trace element grades in the former Kenville mine tailings pond. Test pit results returned no values of economic significance.

In 1992, the property (including the Venango adit) was acquired by Anglo Swiss Resources Ltd. In 1994, Teck Exploration Ltd. optioned the Kenville mine property and amalgamated it with the adjacent Ron property. The Teck exploration program focused on locating a bulk minable copper-gold porphyry target. From 1994 to 1997, work included 16 diamond drillholes totalling 3083 metres, induced polarization, resistivity and ground magnetic and geochemical surveys. Low-grade porphyry-style mineralization and alteration was encountered over short intervals. Teck dropped the option in 1997. During this time, the existing mill facilities were used by Anglo Swiss to process bulk samples extracted from the Blu Starr gemstone property to the north.

Anglo Swiss resumed exploration in 2005. Work focused on an area on the west side of Eagle Creek and consisted of GPS mapping, geochemical soil sampling and excavator trenching. The program continued into 2006 with trenching reclamation, soil sampling and the reconstruction of a 40-metre length of the 257 adit. In 2007 and 2008, Anglo Swiss completed 15 500 metres of drilling over 50 holes near the Kenville mine. The purpose of the program was to further define the Granite-Poorman vein system and to continue exploration for porphyry-style mineralization. Results of this program are unknown.

In 2009, work completed by Anglo Swiss Resources consisted of 680 line kilometres of airborne time-domain electromagnetic geophysical surveys, surface diamond drilling, underground rehabilitation and underground drilling. Ten diamond drillholes were completed at four sites on the east side of Eagle Creek, totalling 3568.4 metres of NQ2-size core. The aim of the drilling was to intersect the inferred extension of the Hardscrabble and Yule veins. Analysis of the core revealed quartz veins ranging from 1 to 40 centimetres thick, typically containing up to 30 per cent fine-grained pyrite with local chalcopyrite and chlorite. The veins commonly imparted a silica-pyrite halo up to 15 centimetres into the hostrock. In 2010, Anglo Swiss Resources completed a diamond drilling program intending to test the southern extension of high-grade veins from the Kenville mine. Five holes were completed and a sixth was abandoned at 90 metres depth. In total, 2982 metres were drilled. From 2010 to 2012, 18 diamond drillholes were completed from eight locations on the Kenville property and one location on the adjacent Ron property. In total, 9375.53 metres of core were drilled, including 8863.17 metres of NQ2-size core and 512.36 metres of BTW core. The drilling successfully identified the southern extensions of the vein systems targeted in the Kenville and Venango mine workings. In 2013, Anglo Swiss sold the Kenville gold property to Eagle Creek Gold Corporation.

The Granite-Poorman veins produced mainly gold with silver but the mill has been used at various periods to process ores from other properties that might have been richer in base metals. In recent years, some of the granitic rock has been used as a construction material (Granite MINFILE 082FSW342). A 1985 report by P.J. Stantos stated that indicated and inferred resources above the 257 (main mine adit) level were 294 800 tonnes grading 16.73 grams per tonne gold (

At end of life, mine production totalled 180 740.23 tonnes (199 232 short tons) averaging 9.07 grams (0.32 ounce) per tonne gold and 3.96 grams (0.14 ounce) per tonne silver (Assessment Report 24303). In total, the mine produced 1849.41 kilograms (65 236 ounces) of gold, 784.88 kilograms (27 686 ounces) of silver, 23.48 tonnes (51 782 pounds) of lead and 15.15 tonnes (33 393 pounds) of zinc (Assessment Report 32837).

A 1995 Teck Exploration drilling program returned 8.7 metres of 1.03 per cent copper and hosted within a newly discovered westward-dipping quartz vein 0.25 metre of coarse, massive pyrite grading 82.15 grams per tonne gold and 31 grams per tonne silver.

In the 2007 and 2008 geochemical soil surveys, Anglo Swiss Resources observed a broad 700 metre long, well defined area of copper, silver, molybdenum anomalies. Significant mineralization was highlighted from the 2007 drilling conducted by Anglo Swiss Resources. One observation was porphyry style chalcopyrite encountered from surface to 25 metres depth, and again at 145 metres depth for 70 metres in hole AK07-01 (Munroe, R. (2009-07-22): Technical (Geological) Report on the 257 Level of the Kenville Gold Mine). Hole AK07-05 assayed two significant intervals at 16.6 grams per tonne gold, 0.79 percent copper, and 34.1 grams per tonne silver over 1.2 metres, and 14.96 grams per tonne gold, 0.38 percent copper, and 30.1 grams per tonne silver across 1.35 metres (Munroe, R. (2009-07-22): Technical (Geological) Report on the 257 Level of the Kenville Gold Mine).

In 2008, Anglo Swiss Resources Inc. conducted an assessment of the aggregate potential of the area surrounding the occurrence. Two quartz vein systems were discovered at the surface of the bedrock underlying aggregate deposits (Munroe, R. (2009-03-02): Technical Brief on the Aggregate Potential for the Kenville Gold Mine Property). Drilling conducted during the same year lead to the discovery of four new “Eagle Veins” found in the area and on strike of the Venango veins. The new veins are subparallel to the main vein system extending along strike for approximately 700 metres (Munroe, R. (2009-07-22): Technical (Geological) Report on the 257 Level of the Kenville Gold Mine). Mineralized zones with in the quartz veins were observed, although the focus of the drill program was on structure and extent of the veining systems as mineralization was high grade but intermittent.

The assay data from 2008 and 2009 exploration programs on the 257 Level allowed resource estimates of the 257 Level and immediately proximal. Anglo Swiss Resources concluded 3,312 tonnes measured grading 31.71 grams per tonne gold, 21,312 tonnes indicated grading 18.84 grams per tonne gold, and 522,321 tonnes inferred grading 23.01 grams per tonne gold (Munroe, R. (2009-07-22): Technical (Geological) Report on the 257 Level of the Kenville Gold Mine).

Significant results from the 2009 Anglo Swiss diamond drill program are shown in the table below (Assessment Report 31623).

Interval Gold Silver Copper

(metres) (parts per million) (parts per million) (parts per million)

0.55 10.55 5.71 699

0.22 33.7 24.8 115

0.5 4.48 12.5 1100

1.14 14.49 20.24 3332

3.2 17.29 34.34 8405

Significant assay results returned from the 2010 drill program include

• 0.5 metre of 111.5 grams per tonne gold and 58.1 grams per tonne silver,

• 0.88 metre of 88.1 grams per tonne gold and 130 grams per tonne silver,

• 0.46 metre of 59.8 grams per tonne gold and 31.8 grams per tonne silver, and

• 0.28 metre of 47.2 grams per tonne gold and 51.4 grams per tonne silver (Assessment Report 32837).

Results from the 2010 to 2012 drilling included 85 samples that returned assays with greater than 5 grams per tonne gold, including 21 quartz vein intersections returning greater than 1 ounce per tonne (34.29 parts per million) gold (Assessment Report 32839).

EM EXPL 1996-E3; 1997-49
EM OF 1999-3
EMPR AR 1889-281; 1890-365; 1891-565; 1892-533; 1893-1042; 1894-743;
1895-685; 1897-462; 1898-1158; 1899-597,691,815,844; 1900-842,
845; 1901-1033; 1902-144,157; 1903-144,157; 1904-133,135; 1905-
166; 1906-248; 1907-103,213; *1908-106,246; 1909-119,121,272;
1910-22,105,243; 1911-27,158,284; 1912-153,156,322; 1913-129,
419; 1914-326; *1915-135,144,445; 1916-203,517; 1917-172,194;
1919-132; 1920-149; 1921-143; 1923-214; 1924-192; 1925-248,251;
1926-275; 1928-320; 1929-346; 1932-159,184; 1933-199,218; 1935-
A27,E27,G50; 1936-E43; 1937-A39,41,E45; 1938-A27,36,E37;
1939-38,42,80; 1940-17,26,66; 1941-18,26,65; 1942-27,61;
1943-64; 1944-33,40,60; *1945-43,96; 1946-35,138; 1947-159;
1948-130; 1949-163; 1950-119; 1951-41,135; 1952-143; 1953-113;
1954-123; 1956-78; 1958-44
EMPR ASS RPT 40, 12649, 22433, 23859, 28159, 28599, *24303, 24879, *31623, *32837, *32839
EMPR BULL 1, p. 100; 10, p. 93; 10 (Rev) p. 155; 20, Part II, p. 11;
41; 109
EMPR FIELDWORK 1980, pp. 149–158; 1981, pp. 28–32, pp. 176–186; 1987, pp. 19–30; 1988, pp. 33–43; 1989, pp. 247–249; 1990, pp. 291–300; 1999, p. 214
EMPR GEM 1970-438
EMPR MAP 7685G; RGS 1977; 8480G
EMPR OF 1988-1; *1989-11; 1991-16; 1991-17, 1999-3
EMPR PF (Underground plans of veins, date and source unknown;
*Maconachie, R.J. (1942): Geological Report on Granite-Poorman;
Anglo-Swiss Resources Inc. Website (Mar.1999): Kenville, 3 p.)
EMR MP CORPFILE (Island Mining Co.; Livingstone Mining Co. Inc.;
International Kenville Gold Mines Ltd.)
GSC MAP 49-22; 52-13A; 62A; 1090A; 1091A; 1956-3
GSC MEM 34; *191, p. 66; 308, pp. 155,172
GSC OF 1195
GSC P 49-22; *52-13
GSC SUM RPT 1889, pp. 55b,64b; *1911, p. 146
CANMET IR #686 (1936), pp. 23,36; #776 (1936), pp. 23–36; #2075
GCNL #36 (Feb. 20), 1996; #86 (May 5) 1997; #37 (Feb. 23), #100 (May 26), 1998
PR REL Anglo Swiss Resources Inc., Feb. 18, 2003; Jan. 25, 2013
Munroe, R. (2009-03-02): Technical Brief on the Aggregate Potential for the Kenville Gold Mine Property.
*Munroe, R. (2009-07-22): Technical (Geological) Report on the 257 Level of the Kenville Gold Mine.