Dumont Mine (Val-d’Or)

 mine, gold mine

 Upload a photo

This mine is located on the Lac Herbin property which is 100% owned by QMX Gold and it was in production from April 1980 until the end of 1994.

The total production from the Dumont Mine (as of December 1st, 1994) is recorded as 1,402,893 short tonnes averaging 0.184 oz Au/st. A total of 69 stopes on a half dozen principal vein structures were mined since the start of operations in April 1980. Production statistics are shown in Tables 6 and 7. The orebodies can be accessed via a 1,700 ft vertical shaft connecting 10 levels spanning over an east-west lateral strike length of approximately 3,900 ft. A 1,700 ft inclined ramp from the 1,600 level provides deeper access to three (3) sub-levels where a down dip extension of the Dumont vein was discovered and eventually developed.

Prior to 1992, extraction was carried out using shrinkage-mining methods. Long hole mining was subsequently used in an effort to increase production and reduce costs. This decision helped reduce cut-off grades and in turn increase mineable ore reserves. Total mining costs were reported to average $42 per tonne based on the February 1994 Monthly Production Report.