From Saranac Lake, NY, we usually use 73 or 9 to get to /from 87 - not sure about Rte 3 up to Plattsburg... If you want some pretty travelling, look at Rte 105 east from St. Albans, VT all the way over to NH. Rte 3 south to 110 east, or Rte 3 north to 26 east. Lake Umbagog SP, just east of Errol, NH, does have limited hookups. You are definitely in moose country! Very pretty ride. You will pick up Rte 2 in Maine, which will take you east all the way to Newport, where you can get on I-95 to Bangor, then Rte 1 south to Ellsworth/Acadia area. These are definitely NOT interstates, but are used daily by cars/trucks of all sorts. ST