Glacier Park officials posted some information on their Facebook page that will be of interest for those planning a visit in a couple of weeks.
To accommodate road rehabilitation work between Avalanche Creek and Logan Pass, September 16th will be the last day you can drive to Logan Pass on the west side of the park from West Glacier. Logan Pass will still be accessible by vehicle from the east side of the park in St. Mary until October 14th, weather permitting.
As soon as officials know more about hiker/biker access on the road during that time, information will be posted. You can view the Going-to-the-Sun Road frequently asked questions page here: http://www.nps.gov/glac/planyourvisit/gttsrfaq.htm.
Glacier National Park Trails