sentences:  In 1832, during the Indian removal period, a group of Potawatomi chiefs signed a treaty with the U.S. government setting aside for the Potawatomi in perpetuity an area of 14,000 acres (57 km2) in the vicinity of the Yellow River; this land was sold at the 1836 Treaty of Yellow River, signed by three Potawatomi chiefs, which stipulated that all Potawatomi move west of the Mississippi River within two years.Chief Menominee refused to sign any treaty, which gave away Indian lands.Still, the land was taken by the Treaty of Tippecanoe.