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In the summer of 1804, after meeting Native Americans for the first time, Lewis and Clark reached the eastern edge of _____.

Respuesta :

It should be C. The Great plains. ---->

Information:

In mid-July, the party reached the mountain of the Platte River a powerful tributary that flows into the Missouri. Early August they met Native Americans for the first time 3 weeks later the Expedition reached the Eastern edge of the Great Plains.