Answer:
William Clark & Meriwether Lewis
Step-by-step explanation:
This expedition is commonly known as the "Lewis & Clark Expedition", and was an expedition in an attempt to map out most of the Louisiana Purchase. The Expedition left the US on a water route that led them to present-day Washington (state), meeting and establishing relationships with the native people along the way, as well as taking geographical and environment note of their surroundings.
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