From Williston North Dakota
Take US HWY 2 across Montana from Bainville to Wolf Point, Glasgow, Malta, and Havre. Havre has the Under ground city and they do have tours thru it. Stay on HWY 2 on to Shelby, Cut Bank, and Browning. From Browning it is 13 miles to the Entrance to East Glacier National Park.
You can miss this very easily, so when you come into East Glacier look on your right and you need to go under the railroad to see The Beautiful Glacier Park Lodge.
Back on HWY 2 you will come to Essex and then West Glacier, stay on HWY 2 for another 2 miles is the enterance San-Suz-Ed RV Park.
Or you can take off from Havre to # 87 to the Rocky Boy Indian Reservation on to For Benton to Great Falls. Now here you will visit the Malstrom Air Base, Lewis and Clark Museum, Charlie Russell cowboy artist and the Giant Springs on to # 89 to Choteau To Browning and back on # 2 on # 2 and you will come to Essex and then West Glacier , stay on # 2 and 2 miles to San-Suz-Ed.