In the plains tribal chiefs agreed in 1851 to accept definite tribal borders and allow whites to travel west.

Fort Laramie Treaty

Explanation:

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Fort Laramie is located at the confluence of the Laramie River and the North Platte River, in the current state of Wyoming.

The treaty was intended to ensure the safety of pioneers traveling west, along the Oregon route. The Treaty also tried to protect the native tribes from the threats of the pioneers.

The treaty kept the peace in the area until mid-1853.

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