Denali National Park, Alaska: Muldrow Glacier Experiencing Rare Geologic Surge Event Denali National Park, Alaska โ Denaliโs 39-mile long Muldrow Glacier runs from Denaliโs northeastern slope and eventually flows to the McKinley River. The glacier is now experiencing a geologic phenomenon known as a surge. According to the National Park Service, a glacial surge is: โโฆa short-lived, cyclical event where ice within a glacier advances suddenly and substantially, sometimes moving at [โฆ] Brains Dominic Gawel | April 15, 2021 0 Comments