Kumtor Gold Mine is an open-pit gold mining site in Issyk Kul Province of Kyrgyzstan located about 350 km (220 mi) southeast of the capital Bishkek and 80 km (50 mi) south of Lake Issyk-Kul near the border with China.
The mine was linked to a major environmental incident in 1998 when a truck carrying 1762 kg of sodium cyanide (a chemical used to dissolve gold from granulated ore the use of which is highly controversial) fell into the Barskaun River on the way to Kumtor.
Official web page.
[url]http://www.kumtor.kg/en[/url]