The Syenite Bluff occurrence lies 40 kilometres south of Golden. It is located on the north side of Vermont Creek, 4.5 kilometres west of the junction of Vermont and Vowell Creeks.

The Syenite Bluff occurrence was staked in 1889. The Golden Mining and Smelting Company of Canada (Limited), acquired the property and during 1891 an adit was driven more than 300 metres. The underlying rocks are metamorphosed sediments of the Upper Proterozoic Horsethief Creek Group. Lead-zinc mineralization has been exposed at several widely separated points. At one of these, disseminated sulphide occurs in conglomerate and in the slate underlying the conglomerate. At another point, lead-zinc mineralization occurs in bedded limestone. The most conspicuous feature of the property is a narrow vein mineralized with sphalerite, galena, and boulangerite. The boulangerite, a sulphur-antimonide of lead, forms a considerable part of the sulphide mineralization. Oxidation of this mineral yields the yellow oxide of antimony. This marks the outcrop of the vein, which is traceable along a talus slope and down a steep slide course for a horizontal distance of 549 metres. The vein extends from the crest of the divide between Vermont and Copper Creeks to a point in the slide at 2362 metres elevation. The vein is easily traced by the yellow-coated float and is usually easily found in place by a little digging. The actual vein however is rarely exposed. It appears to have a width of from 0.3 to 0.6 metre. It is composed of mineralized quartz which may include a considerable quantity of siliceous schist which the vein appears to follow. Sphalerite forms an important part of the mineralization. The following table lists analyses of two vein samples.

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Gold Silver Lead Zinc

Grams Per Tonne Grams Per Tonne Per Cent Per Cent

11.66 123.43 Trace 10.6

4.11 740.57 0.2 24.8

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