The Brynnor past producer is located on Draw Creek, approximately 3.4 kilometres north of Maggie Lake.

The deposit occurs within a sequence of limestone and tuff of the Upper Triassic Quatsino Formation (Vancouver Group). These are cut off to the south by a large quartz diorite stock of the Early to Middle Jurassic Island Plutonic Suite. The sequence has been intruded by Tertiary syenite porphyry and diorite dikes, and is in fault contact with andesite of the Lower Jurassic Bonanza Group.

The tuffs show partial alteration to sericite, epidote, chlorite, and serpentine in thin-section while the limestones are commonly only recrystallized. The skarn mineralization is predominantly garnet-epidote alteration of the tuffs which envelopes the pods of magnetite for thicknesses up to about ten metres. Skarn minerals are not disseminated within the magnetite or the surrounding limestone and tuff beyond the alteration envelope. However, many dioritic dikes are partially or completely altered to skarn.

Structurally, the deposit has been folded and faulted. Fault offsets are generally small and of short areal extent. The layers of limestone and tuff have been folded into a broad anticline which plunges at a low angle to the southwest. Folding and most faulting precede the mineralizing events.

The magnetite is quite pure, containing only trace amounts of calcite, pyrite, and pyrrhotite. It appears to be the product of late-stage mineralization as evidenced by the purity and cross- cutting relationships. Two large mineralized pods lie along the contact between the limestone and tuff. Small, isolated pods are found scattered within the tuffs, but are of no economic consequence. Magnetite and skarn are preferentially located where dikes cross the limestone-tuff contact but no magnetite is found within the dikes.

The main magnetite body has been mined by open pit. The other body lies east-southeast of the old pit and has been outlined by diamond drilling and underground development. A fault separating the two bodies strikes north-northeast and dips 70 degrees west. In the eastern body, the massive magnetite appears to be bounded by fault slips and gouge zones. This ore body is 60 metres deeper than the open pit body.

From 1962 to 1968, the open pit produced concentrate containing an average of 63.8 per cent iron. A total of 3,011,306,260 kilograms of iron concentrates was shipped from 4,480,940 tonnes mined. Reserves for the east ore body are undocumented, however, they likely contain a grade comparable (56 per cent) to the deposit mined at the open pit.

In 1988, two 13.6-kilogram bulk samples of waste rock were analyzed for associated alloying element content. Results were negligible (Assessment Report 18150).

In 2008, Ridgemont Capital Corp. completed 21 diamond drill holes, totalling 6678 metres, on the occurrence.

In 2009, remaining measure and indicated resources were re-estimated at 7 million tonnes at a grade of 51 per cent, with inferred resources of an additional 13 million tonnes (Assessment Report 31392). Reserves for the east ore body are undocumented, however, they likely contain a grade comparable (56 per cent) to the deposit mined at the open pit. Drilling has indicated that gold resources associated with the magnetite deposits and other parts of the skarn are sporadic. Thicker sections of magnetite show the strongest gold association and grades up to 2.7 grams per tonne over approximately 3 metres (Assessment Report 31392).

J.J.M. Construction Limited (part of the J.J.M. Group) extracted approximately 245,000 tonnes of limestone from the dumps and shipped/trucked it to Washington State, (near Aberdeen) for a breakwater.

In 2011, Logan Resources Ltd. and joint venture partner Ridgemont Iron Ore Corp. conducted drilling and ground geophysics. The 2011 Ridgemont diamond drill program consisted of 61 holes totalling 10, 234.58 metres utilizing 29 drill pads. The program coverage was categorized into three zones: the Main, East and North zones. The drill results from the East zone confirmed that magnetite mineralization was similar in strike and dip to that found in the Main zone. Highlights are shown in the following table (Assessment Report 33618).

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Drillhole From(metres) To(metres) Interval(metres) Magnetite iron

(per cent)

RD11-46 145 155 10 45.7

RD11-47 77 88 11 58.5

RD11-50 24.4 34 9.6 47.7

RD11-58 46 65 19 51

RD11-59 57 65 8 50.1

RD11-61 49 56 7 51.1

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