Gold exploration resumes at site of leak near Keystone
KEYSTONE (AP) -- Work has resumed at a gold exploration drilling site in western South Dakota where a leak occurred last week.
The site was shut down when bentonite leaked into Battle Creek near Keystone. Bentonite is a claylike material used as a drilling lubricant. The media reports that state officials do not expect any environmental damage.
Mineral Mountain Resources Ltd. of Vancouver, British Columbia, is exploring for gold in the area.