The tract comprised the only native reserved lands within the state of Pennsylvania during its existence.
It was originally established in 1796 as a grant to Seneca diplomat Cornplanter, also known as John Abeel III, for his personal use, with the right to pass the plot down through his descendants forever.
[1] Cornplanter promptly opened up his plot to native settlement, and within two years, 400 Seneca were living on the tract.
[3] In the early 1960s, construction of the Kinzua Dam created the Allegheny Reservoir, which submerged the vast majority of the tract.
Graves located in a cemetery on the tract mostly were exhumed and their bodies were reinterred in higher ground.