Canadian Mining Journal


GOLD: Osisko begins blasting at Windfall Lake

Visible gold is frequently seen in core from the Lynx zone at the Windfall Lake project in Quebec. (Image: Osisko Mining)

QUEBEC – Last week Osisko Mining of Toronto completed its first underground blast at its Windfall Lake gold project in Urban Township. Dewatering of the exploration ramp was competed at the end of August, and rehabilitation will be complete next month. By the end of the year, underground infrastructure including a powder magazine other excavations will be complete.

The exploration ramp is expected to advance at a rate of about 200 metres per month. Bulk sampling for metallurgical testing and grade confirmation as well as underground exploration is scheduled to begin in Q1 2018.

The Windfall Lake project contains an estimated 748,000 oz. of gold at a grade  of 8.42 g/t in the indicated category, and 860,000 oz. at a grade of 7.62 g/t in the inferred category. A preliminary economic assessment prepared in 2015, considered an underground mine and 1,900 t/d mill with a 10-year life.

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