Butte-Silver Bow County authorities say a 69-year-old man died in a single-vehicle crash on Interstate 15.
Coroner officials say Paul Pack of Alberta, Canada, crashed his semi-truck in the Moose Creek area on Sunday morning.
The Montana Highway Patrol says the truck was headed northbound on the interstate when it went off the roadway on a curve.
The truck went over the median, over the frontage road and struck an embankment.
Parker died at the scene.
The Montana Standard reports (http://bit.ly/1c3aiBH ) road conditions were wet, and alcohol and speed did not appear to be factors in the crash.