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The Chinook natives provided Lewis and Clark with guidance, supplies, and information about the local geography when the expedition reached the Columbia River in present-day Washington. They also offered trade goods and trading opportunities to the expedition.
Sacagawea, a Shoshone woman, played a crucial role in helping Lewis and Clark communicate with Native American tribes they encountered during their expedition. She acted as an interpreter and guide, facilitating peaceful interactions and trade with various indigenous groups.
The Mandan tribe was agreeable to the goals of Lewis and Clark, and their Corps of Discovery project. However, in spite of peace talks with a neighboring tribe, the Arikaras, fighting broke out. Fortunately, the Mandans kept their relationship with the explorers positive and provided them with food in trade for other goods.
The Lewis and Clark Expedition .
they would have natives trade fur for things like guns and beer
to find a trade route to the pacific ocean
gun's ammo and other things that are usfull
So that they can find out what is in that area and what inhabitants live there.
Lewis and Clark and Pike and others sent to explore the wilderness to check out the land and to find trade routes. This was called the Louisiana Purchase.
They wanted to find a direct water route to Asia, for trade.
The water route explored by Lewis and Clark, particularly the Missouri River, provided a navigable waterway that connected the interior of North America to the Mississippi River and ultimately to ports along the Gulf of Mexico. This connection would have facilitated overseas trade by making it easier to transport goods from the interior to coastal trading hubs, thus opening up new markets for American goods to be exported abroad.
Lewis and Clark had brought with them, as gifts to the Native Americans: "5 lbs. White glass beads mostly small", "20 lbs. Red beads assorted", and "5 lbs. of Yellow or Orange beads assorted." These were meant to be used strictly as gifts, but it is true that Lewis and Clark might have used some to trade for supplies when it was necessary.