Denali Treks May Not Be Possible Due to Dangerous Glacier Movements

Environmental science researchers have discovered that the Muldrow Glacier in Denali National Park has experienced a surge of movement, prompting park authorities to discourage trips to the summit. Normally, glaciers barely move at all. But in places like Alaska, there are instances when the ice suddenly accelerates en masse, breaking up and cascading forward in a surge at the speed comparable to an avalanche.