Morning of sight-seeing in Glacier National Park, evening drive to Red LodgeDon't underestimate travel times as even from St Mary's Lake in Glacier it would take around 8 hours to get to Red Lodge. I also think you should make it a priority to see what lodgings are available in, or near to Glacier NP. I would consider looking on the east side of the park as you may not have time for the Going to the sun road and if it were closed and you booked in West Glacier you are just adding more miles. The Rising sun motor Inn by St Marys is nice with some lovely small cabins as an option. Then there is Many Glacier hotel and Swiftcurrent motor Inn at Many Galcier, a beautiful area as Rick mentioned. There are a few options near lower St Mary's lake on US89 as well.which should allow us to give it a full day and an early, long morning.