Driving through Montana while so many fires were burning

We drove through Montana on 8/25/17 to get from Buffalo, WY to Kalispell, MT.  We did the drive in 3 days making two stops.

There are several fires burning in Montana; we passed several small burned areas near the freeway and could see a lot of smoke in the air near Butte MT.  While spending one night near Butte I didn’t go outside as the smoke was so thick.

Here’s a picture of how smoky the air was around Butte: