https://www.openstreetmap.org/way/850158523 is missing some tags indicating that it is quite impassable (in addition to legal access limitations)

Mailing list posting describes it as " https://www.openstreetmap.org/way/850158523 is a narrow, eroded
mountain road that terminates in the building
https://www.openstreetmap.org/way/854508877 which looks like an isolated
dwelling or hunting cabin (not part of a farm or forestry operation.)
It's partially blocked in many places by large rocks and treefall. I
can't say for sure what sort of vehicle can travel this road, but I
imagine many 4x4s would not be up to the task -- maybe only ATVs."

