Actually, Avalon is in the Delta, but John's home( a few miles away) is in the hills, located in the Valley community where he lived when he was "rediscovered".

Another point, it has been wrongfully stated on the internet that Teoc, John's birthplace, later had it's name changed to Avalon. Actually Teoc is several miles from Avalon, located right at the end of the hills going into the Delta.

khandu