North Mara
The North Mara gold mine is located in the northwestern part of Tanzania in the Tarime District of Mara Region, approximately 100 kilometres east of Lake Victoria and 20 kilometres south of the Kenyan border.
Ore is fed from the run-of-mine (“ROM”) pad via a single jaw crusher into a secondary crusher and then onto a crushed ore stockpile. The crushed ore is reclaimed from the stockpile and conveyed into an open circuit SAG mill before passing to a closed circuit ball mill regrind. A gravity separation circuit is used to collect free gold from regrind circuit. The ore is then processed via cyanidation and carbon in leach, followed by electrowinning and gold refining to doré on site.
In 2008, gold production at North Mara totaled approximately 197,000 ounces at a total cash cost of $757 per ounce1. Proven and probable mineral reserves as of December 31, 2008 are estimated at 3.0 million ounces of gold2.