Allegany Indian Territories (AIR)
The AIR is located along the Allegheny River from the Pennsylvania border upriver to Vandalia, New York, and is located entirely within Cattaraugus County. The AIR originally included 30,469 acres of land surrounding the Allegheny, of which some 10,000 acres were inundated by the Kinzua Reservoir when the Army Corps of Engineers built the Kinzua Dam in 1964. This reservation also includes the City of Salamanca.
Cattaraugus Indian Territories (CIR)
The CIR is located along the Cattaraugus Creek, from Gowanda, New York, downstream to the shore of Lake Erie. The CIR is comprised of some 21,618 acres in Cattaraugus, Chautauqua and Erie counties.
Oil Spring Indian Territories (OSIR)
The OSIR is located on the border of Cattaraugus and Allegany Counties near Cuba, New York. The OSIR is made up of one square mile of land that includes access to Cuba Lake. Although the OSIR has no permanent Seneca residents, there are SNI and privately owned enterprises operating on the reservation. The spring is located near the spillway end of Cuba Lake on the Oil Spring Indian Reservation. This is the site of the famed spring described by the Franciscan Missionary Joseph DeLa Roch D'Allion in 1627, the first recorded mention of oil on the North American Continent. In 1927, the New York State Oil Producers Association sponsored the dedication of a monument at the site describing the history of the oil industry in North America.
Buffalo Creek and Niagara Falls Gaming Operations
As a result of the New York State Gaming Compact, the Seneca Nation of Indians established sovereign Class III gaming operations in Buffalo Creek and Niagara Falls.