There are over 330 species of alpine tundra in Colorado, of which 180 are found in Rocky Mountain National Park . Over one third of the park is above tree line and is home to these plants. The most accessible viewing of tundra in the Rockies is along Trail Ridge Road, as winds its way from Estes Park, over the Continental Divide to Grand Lake. Tundra is a fragile plant, and if damaged can take hundreds of years to recover. With over 3 million visitors each year to Rocky Mountain National Park, the tundra must be protected from human feet destroying the small plants. Enjoy it from the designated pathways and trails only! http://www.ellensplace.net/tundra.html Driving Trail Ridge yesterday I saw dozens of people on the tundra, passing right by closed trail signs and disregarding the rules to sled on snow or get a photo of elk.. It's so important we don't do this. Please stay on trails.. the ones that are open.