Report 65664: Sighting by trucker on Hwy 90 at Lookout Pass outside Tammany

I am an OTR truck driver. It was about 4:30 am near Tammany Montana near Lookout Pass. Had a very good look at a long reddish haired bigfoot standing up right on the back side of concrete barrier, long reddish brown hair. Couldn’t get a height since it was on other side of barrier. Saw the head and both arms on the barrier. Have very bright headlights on truck so got a good look. I am an avid hunter and outdoorsman. It did not have a pointy face. Eyes pointing forward. Saw it for about 5 to 10 seconds. It moved to my left extremely fast and was gone.