FYI
The four-lane highway was closed Thursday evening from just west of Missoula to St. Regis, just east of Lookout Pass on the Montana-Idaho border. Officials said they were still investigating what started the fires, but said arson or possibly a vehicle dragging something that emitted sparks were both considered possible causes.
"This absolutely wasn't an act of God," said fire spokesman Scott Waldron.
ALBERTON, Mont. (AP) — Four separate blazes that apparently were ignited along Interstate 90 near here continued to burn out of control Friday, and officials said a 90-mile stretch of the interstate would remain closed indefinitely while crews battled the blazes.
http://www.oregonlive.com/newsflash/washingtonstate/index.ssf?/base/news-15/1123259545212390.xml&storylist=orwashington
Thank you TWhiteBear.
Updates appreciated on these (possible) arsons.