Many glaciers are in the Alaska Range , including the Canwell , Castner , Black Rapids , Susitna , Yanert , Muldrow , Eldridge , Ruth , Tokositna , and Kahiltna Glaciers . The heavy snowfall also contributes to a number of large glaciers , including the Canwell , Castner , Black Rapids , Susitna , Yanert , Muldrow , Eldridge , Ruth , Tokositna , and Kahiltna Glaciers .