Trying to start colonies, which river did cartier and champlain sailed along? st. lawrence river colorado river missouri river mississippi river

St. Lawrence River

Explanation:

Jacques Cartier and Samuel Champlain were french explorers taht explored the St. Lawrence River, Cartier first claimed the lands that the river touched for France and explored the river and created a map, then eventually Samuel Champlain came and founded one of the first settlements in what is now known as Quebec.