This hike is about 2 miles each way, and it climbs steeply up through a scree field to a peak overlooking this region of GNP. The view is absolutely stunning! Be forewarned, though: despite the short length, this is a strenuous hike, especially if you're not used to the elevation. And bring your camera!
From West Glacier, drive up the Going to the Sun Road all the way up to the top of Logan Pass. The trail starts there.
http://www.tripleblaze.com/trail.php?c=3&i=2244