We stayed at prefer the KOA in West Glacier in June of 2012. A good CG and close to park. Going To The Sun opened last year on June 21st. We drove our dually over and back with no issues. We stayed at East Glacier KOA part of our visit there and it is a notch or two down from the West, but the east side is most convenient for day trips into Canada. We came to this part of Montana by way of the east side through the big grain farming areas and American Indian Reservation. I recommend both sides for staying and seeing.
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