Montana Department of Environmental Quality

State and federal officials say a large mining clean-up project in Montana is nearly complete and open for recreation. At the Upper Blackfoot Mining...

State and federal officials say a large mining clean up project in Montana is nearly complete and open for recreation.

A vital water crossing certification for the Keystone XL crude oil pipeline is in limbo after environmental groups challenged Montana’s recent issuance of a water quality certification. The state’s decision and an appeal comes during a transition in state and federal administrations.

Environmental groups are calling for the state of Montana to reconsider a water quality certification that allows the Keystone XL crude oil pipeline to cross more than 200 protected water bodies in the eastern part of the state.

The Montana Department of Environmental Quality gave the Keystone XL crude oil pipeline the go ahead to cross water bodies in eastern Montana before the agency could fully review over 650 public comments.

Montana Gov. elect Greg Gianforte on Wednesday announced the next leader of the state Department of Environmental Quality.

State environmental regulators Friday approved new standards for a heavy metal in Lake Koocanusa and the Kootenai River.

The state of Montana this week announced the operator of the Colstrip coal fired power plant will fully remove coal ash ponds that have been leaking millions of gallons of wastewater a year from the plant’s two now retired units.

Republican Montana Governor-elect Greg Gianforte Friday announced his joint transition advisory team for two agencies key to managing the state’s natural resources.