Who explored the st lawrence river?

French navigator Jacques Cartier becomes the first European explorer to discover the St. Lawrence River in present-day Quebec, Canada. In 1534, Cartier was commissioned by King Francis I of France to explore the northern American lands in search of riches and the rumored Northwest Passage to Asia. read more

The first European explorer known to have sailed up the Saint Lawrence River itself was Jacques Cartier. At that time, the land along the river was inhabited by the St. Lawrence Iroquoians; at the time of Cartier's second voyage in 1535. read more