クレーター氷河
1 2 Schilling, Steve P.; Paul E. Carrara; Ren A. Thompson; Eugene Y. Iwatsubo (2004). “Posteruption glacier development within the crater of Mount St. Helens, Washington, USA”. Quaternary Research (Elsevier Science (USA)) 61 (3): 325–329. Bibcode: 2004QuRes..61..325S. doi:10.1016/j.yqres.2003.11.002.
↑ McCandless, Melanie; Plummer, Mitchell; Clark, Douglas (2005). “Predictions of the growth and steady-state form of the Mount St. Helens Crater Glacier using a 2-D glacier model”. Abstracts with Programs - Geological Society of America 37 (7): 354.
↑ “Loowit Falls” (2008年1月20日). 2008年12月15日閲覧。
1 2 Patton, Vince (2002年11月9日).