Also worth noting the Seneca Nation had 1500 acres in northern PA up until the 1960s, but then it was flooded when the Kinzua Dam was built. Also still in the area, but that was when the last tribal land in the commonwealth was taken. Honestly I wish I knew how to change that, should I try to do something locally or take it up with my state rep? https://pahistoricpreservation.com/cornplanter-grant-native-american/