If all goes according to plan we will be in Glacier for our first time. We will be there for a couple weeks in late August to check it out and then head up the Banff, Lake Louise and Jasper for September and then coming back south the Glacier NP - hopefully to catch some fall foliage. I am not finding many resources for the timing of fall foliage (looks like Aspens are early and Larch are later in the season). Obviously fall is always a bit of guess work, but would appreciate advice on best timing. Is early October too late ??