The Treaty of Big Tree was a formal treaty signed in 1797 between the Seneca Nation and the United States, in which the Seneca relinquished their rights to nearly all of their traditional homeland in New York State—nearly 3.5 million acres. In the 1788 Phelps and Gorham Purchase, the Iroquois had previously sold rights to their land between Seneca Lake and the Genesee River. The Treaty of Big Tree signed away their rights to all their territory west of the Genesee River except ten small tracts of land for $100,000 and other considerations (roughly $5 billion in 2020 dollars, in relation to GDP.) The money was not paid directly to the tribe, but was to be invested in shares of the Bank of the United States, and to be paid out to the Senecas in annual earnings of up to six percent, or $6,000