Treaty of Washington, with Menominee (1831)

In the treaty, the Menominee ceded about 2,500,000 acres (10,000 km2; 3,900 sq mi) of their land in Wisconsin primarily adjacent to Lake Michigan.

The head chief that attended the talks for the tribe was Iometah, who was shown signing the treaty as Aya-mah-taw, while the United States was represented by John H. Eaton, the Secretary of War.

The negotiations concluded on February 8, 1831, ceding 2,500,000 acres (10,000 km2; 3,900 sq mi) to the United States in return for clothing, provisions and annuities totaling approximately US$92,000.

The Senate did so, and George B. Porter, the Governor of the Michigan Territory was directed to gain the consent of the Menominee tribe to the changes.

After the modifications were negotiated and agreed to by both tribes and the United States, the treaty was again submitted to the Senate and ratified in 1833.