 Despite numerous observations and publications about the growing glacier in the late 1990s and early 2000s , no move was made to give the glacier a permanent and official name until late 2004 , after the current eruptive cycle began and the new dome began to split the glacier . At that time , a proponent from the Cowlitz tribe suggested the name " Tulutson Glacier , " from the Cowlitz language word for ice . In March 2005 , the Washington State Board on Geographic Names chose Tulutson over three other contenders ( Crater , Spirit , and <unk> ) , and so Tulutson Glacier became the de facto name . 
