This weeks challenge is to go out there and find that "treasure". In this case a treasure is any old abandoned structure. It could be a cellar hole in the forest, or an unused railroad bridge. Or maybe a dam which has been partially disassembled. Or an abandoned quarry.
What about a class IV road? Sure, but run along it for a ways and find that stone bridge or wall or cellar hole that marks this as an abandoned byway.
Old barns falling in upon themselves. Cars and tractors which deep in the woods. Cabins that are returning to the Earth.
The Upper Valley is full of these treasures!