It's hard to desribe how massive this glacier looks in person. I wish the image below had some reference point to give it a sense of scale.
Even harder is to imagine is that since 1910 the face of this glacier has receded 1.75 miles (see here: http://www.nationmaster.com/encyclopedia/Mendenhall-Glacier).
On the trail from the parking lot to the glacier observation deck there were stone markers showing the location of the glacial face for a given year. It was pretty remarkable to count them off as we got closer and closer to the deck. I wish I had taken a few photos of them. I'll post images from the trail (as well as an image of a friendly local we encountered while on the trail) tomorrow. Until then, here's a shot of the glacier itself: