From Billings, there two ways to get there. Either take I-90 past Bozeman, then 287 morth to Helena, through rolling hills, with the moutains in the distance. This is the main road. Another scenic route is to take 89 north by the Crazy Mountains and Castle Mountains and then 12 west. This was the road we took this time. This is a picture of the Crazy Mountains at sunset. Both are really worth the ride.