Which explorer traveled to the carolinas and oklahoma and found the mississippi river? de soto coronado estevanico de vaca

De Soto had found the Mississippi river.

DE soto is your answer. he found the mississippi river

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.