Colorodo River
Spanish explorers were the first to explore of that area.
If you mean when the Europeans came to America, then the southwest mainly around the Colorado River.
Both countries explored the Mississippi River. The first Spaniard was Hernando de Soto and the first Frenchman was Sieur de LaSalle.
first to explore St. Lawrence River Answer this question
mississippi river
The Mississippi River and the St. Lawrence River
it depends who "he" is
The river explored by the spanish is the Colorado River.
How would I know? I wasn`t alive when they set their lazy butts on that ship! I`m only 11!
Henry Hudson did not explore the st. Lawrence river. Samuel De Champlain did!
Dr. David Livingstone, from Britain was the first European to explore the Zambezi River.