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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.

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