The state Public Service Commission has approved a permit for a controversial power line in western North Dakota.
The Basin Electric line will run nearly 200 miles from near the Antelope Valley power plant near Beulah to a substation near Tioga.
Objections to the proposed path of the power line have been raised by people who say it will run too close to Killdeer Battlefield Study Area.
PSC Chairman Brian Kalk says those concerns are addressed in the approval order, requiring Basin Electric to obtain concurrence from the State Historic Preservation Office that the line will not impact historic sites.
In addition, Kalk says the company must prove that the Williston City Commission does not believe the route will interfere with the proposed new location for Williston's airport.
PSC member Julie Fedorchak says the path of the transmission line comes within one-and-a- quarter miles of Theodore Roosevelt National Park's North Unit.
But she says park officials provided information that only three power poles will be visible to people in about ten to 20 percent of the park.
197-mile power line is estimated to cost about 375-million dollars to construct.