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File Created: 04-Mar-2026 by Del Ferguson (DF)
Last Edit:  06-Mar-2026 by Del Ferguson (DF)

Summary Help Help

NMI
Name MIDDLE LAKE Mining Division Cariboo
BCGS Map 093A044
Status Showing NTS Map 093A06W
Latitude 052º 25' 16'' UTM 10 (NAD 83)
Longitude 121º 22' 30'' Northing 5809107
Easting 610506
Commodities Copper, Gold, Molybdenum Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The MIDDLE LAKE showing is located east of Middle Lake and 10 kilometres north-northeast of the community of Horsefly. It is within the Cowtrail property as are the Cowtrail (093A 266), BM (093A 112) and Hook (093A 116) showings.

The oldest rocks on the property belong to the Upper Triassic-Lower Jurassic Nicola Group and consist of a submarine sequence of augite basalt flows and wackes that are overlain by massive felsic tuff breccias (probably volcanic equivalents of crosscutting alkalic intrusions), which in turn are overlain by a dark grey siltstone. The youngest units are maroon-coloured analcite-bearing basalt flows and breccias of probable subaqueous origin. Four intrusive centres are known to exist on the Cowtrail property including the "Lea Lake" intrusive, ‘Middle Lake" alkalic entity’, the "Hooker Lake syenodiorite" and the carbonate altered "BM" felsic unit. Two of the known intrusive centres, the Middle Lake entity and the Hooker Lake syenodiorite, may be coeval with the younger volcanic lithologies and are probably subvolcanic in origin. They occur as virtual windows in a till-covered terrain and may coalesce under this cover.

In 1997, reconnaissance drilling undertaken by Eastfield Resources Ltd. (then in a project partnership with Imperial Metals Corporation) identified the “Middle Lake Intrusive Entity” in the area east of Middle Lake. The “Middle Lake Entity”, where drilled, included potassic altered syenodiorite (predominantly monzonite porphyry), crowded feldspar porphyry and (quartz)-microdiorite. This intrusion, which was discovered by following up reconnaissance “IP” completed in 1996 is blind and is overlain by wet, clay rich, glaciofluvial till. Holes 97-B-20, 21 and 22 were drilled on ± 200 metre intervals over a 400 metre extent in the target. These holes intersected a well altered alkalic intrusion over much of their full lengths. The alteration is dominantly potassic and includes abundant secondary potassium feldspar and biotite. While no economic grades of mineralization were encountered, the holes were highly anomalous. The first 59.6 metres of hole 97-B-20 averaged 402 parts per million copper and 32 parts per billion gold with the highest 3-metre sample being 1280 parts per million (0.12 per cent) copper and 82 parts per billion gold. The location of drillhole 97-B-20 is roughly centre of the Middle Lake stock, 780 metres southeast of the Cowtrail showing. The first 57 metres of hole 97-B-21, 280 metres west-northwest of 97-B-21, averaged 355 parts per million copper and 13 parts per billion gold with the highest 3-metre sample being 835 parts per million copper and 46 parts per billion gold. The bottom of hole 97-B-21 (last 18.1 metres) is noteworthy in its high molybdenum content that averages 55 parts per million molybdenum with 3 metre samples to 103 parts per million (Assessment Report

25491).

From 2005 to 2011 Dajin Resources Corp. conducted rock and soil geochemical surveys and ground IP and magnetometer surveys resulting in target areas for 2007 and 2011 drill programs. The 2011 diamond drilling by Dajin Resources Corp. included 2 holes at the northwest end of the Middle Lake Stock, CT-2011-11 and 11A. Hole CT-2011-011A contained anomalous mineralization, grading up to 0.131 gram per tonne gold and 0.147 per cent copper from 77.0 to 283.0 metres downhole. This 206 m interval averaged 0.037 gram per tonne gold and 0.0384 per cent copper. The entire interval consisted of variably chlorite-altered fragmental basalt with occasional layers of basalt (Assessment Report 33196).

For a more detailed Cowtrail property history see Cowtrail (DDH01) (MINFILE 093A 266).

Bibliography
EMPR OF 1990-31; 2004-09
EMPR P 1987-1, pp. 125-131; 1988-1, pp. 131-138, pp. 139-146, pp. 147-154; 1989-1, pp. 159-166, pp. 167-172; 1990-3; 1991-1, pp. 331-344
CJES 36: pp. 1483-1494
PR REL Cariboo Rose Resources Ltd. Feb. 20, 2024; Sept. 16, Nov. 27, 2025; Feb 18, 2026

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