After poking around on the FCC database
I found Amsterdam and Westerlo mentioned. Also found usage in Washington County, which isn't very far either, but the license was expired...although that means very little. I work at the hospital in town here and they have an expired license for the 155.400 link to the ambulances...and no one cares about that...even the corporate compliance officer. The ER personnel just keep ID'ing with a long expired call sign. But after looking at the alternatives, I'm gonna go with Amsterdam's highway department as the source. They're just close enough and with some mobiles occasionally hitting some higher spots, it could mimick what's going on. The nature of the radio traffic is right also. Funny thing is that SS PD totally ignores it...and has nothing done about it.