Definition of mt_st_helens
"Mt_St_Helens" is probably misspelled. Trying Mt._St._Helens instead Definition of Mt._St._Helens
1. Mt._St._Helens [ n ] an active volcano in the Cascade Range in southwestern Washington; erupted violently in 1980 after 123 years of inactivity
Synonyms Mount_St._Helens Mt._St._Helens Mount_Saint_Helens Related Terms volcano Washington Cascades
