Check out the seriously cool old 1751 map I found
I grew up were the first house in the Connecticut western reserve was built
That was Indian territory then and far from Connecticut, it was eastern Ohio
BTW the confluence at Dimple rock is caused by the steam that runs through Frank Lloyd Wrights masterpiece "Falling Waters" and dumps into the Yough at Dimple rock
Over in Chalkhill, is another of his master works "Kentuck Knob"