Waterways in American History Native Americans on the Northwest Coast fished for Agriculture and Salmon in the ____________ River. Fishing Native Americans in the Southwest used the Rio Grande to water their ___________. Explorers used the __________ and __________ Oceans to explore new lands. Exploration French and Spanish explorers used the Gulf of ____________ to travel from North America to other parts of the Americas. __________ and __________ sailed down the Columbia River to explore the Northwest Coast. The Spanish explored the __________ River. People in the united States used the __________ and ___________ Rivers to transport farm and industrial (factory) products. They provided links from ___________ to the rest of the world. Trade and Transportation The Ohio River was used to travel from east to west. It is known as the “Gateway to the __________.” The St. Lawrence River connected the Great __________ to the Atlantic Ocean. Port cities grew along the Great Lakes and products were shipped along this river.