When Did Glacier Peak First Erupt?
When Did Glacier Peak First Erupt? Plinian When was the first time Glacier Peak erupted? Glacier Peak First ascent1898 by Thomas Gerdine and party Easiest route Rock/ice climb on Sitkum Glacier When was Glacier Peak? Glacier Peak wasn’t known by settlers to be a volcano until the 1850’s, when Native Americans mentioned to naturalist George