Glaciers in Colorado

What is a glacier?
  • Glaciers are large moving masses of ice, found across the world in cold climates and high elevations.
  • They are formed from years of snow accumulation which buries and compresses old snow, turning it into ice.
  • Colorado has several glaciers, though they are rapidly disappearing.
  • During the Pleistocene era (~1.8 million to 10,000 years before present), many large valley glaciers were present in Colorado, ranging in size from 15-25 km long and 1-3 km wide. There was even a small icecap in the northwest part of Rocky Mountain National Park. Today, only small glaciers remain in Colorado, with only 7 that are larger than 0.1 km2.