From Billings, Montana to Yaak, Montana is 10-11 hours, try google maps for more specific information...
It is 1,204.28 miles according to MapQuest via I-15.
It is 363 miles according to Google Maps.
The Rockies start as far north as Canada; British Columbia, Alberta, Idaho, Montana, Wyoming, Utah, Colorado, and New Mexico.
The driving distance from Billings, Montana to Wenatchee, Washington is 712 miles via I-90 W per MapQuest. The driving time per MapQuest is 10 hours and 8 minutes.
1,319 miles (19 hrs 55 mins in a car)
7390 kilometres (4592 miles) is the distance between British Columbia and Japan.
British Columbia
1,761 miles
The driving distance from Broadus, Montana to Billings, Montana is 167 miles via US-212 W per MapQuest. The driving time per MapQuest is 2 hours and 36 minutes.
1100 miles
For provinces away.