KEYSTONE, SD -
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. State officials do not expect any environmental damage.
Mineral Mountain Resources Ltd. of Vancouver, British Columbia, is exploring for gold in the area.
© 2012 Associated Press. All rights reserved. Material may not be redistributed.
Dude To Dad
