I live a few hours from it, Art. Basically this: as noted above, all the glaciers in the Columbia Icefield are retreating at about 1 mile per 100 years.

COLUMBIA ICEFIELD

Area: 325 square kilometres (130 square miles), making it the largest body of ice in the Rocky Mountains
Highest Point: Mt. Columbia, 3745 m (12,284 ft)
Average Elevation: 3000 m (10,000 ft)
Greatest Depth (estimated): 365 m (1200 ft)
Average Snowfall: 7 m (23 ft) per year
Drainage: Pacific, Arctic and Atlantic Oceans