Billings MT to Coeur d'Alene ID

enblethen wrote:
There is three areas that create problems for some.
Westbound just east of Butte is a good grade. Bigger issue is coming down the west side.
Fourth of July pass is a steady climb. No big issue watch your temperature and keep speed down.
Lookout Pass at the Idaho- Montana border.
Watch your speed and don't overheat your brakes coming on all the passes.
Remember going up is only the half of it. Going down can be as much of an issue.

The only person that got all the grades between the two.

Lookout is out "wow" because (westbound) you are driving on the edge of a very spectacular drop-off. It's a little steep and if you use your brakes, vrs being careful and holding your speed down you might get in trouble.