I know what you mean, but it's more local than regional.NH and Me. are both North Eastern states, they share a border, NH has Alton Bay, pronounced "all-ton"up North of Bangor Me is the Alton Woods, pronounced "al-ton".It all depends on how the locals agreed on saying it and to hell with "pronunciation.
As well as New Englanders are just phuqing weird!
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I don't speak no Yankee-talk! LOL!mb