[martyvis]

It does seem like the perfect thing to be documented in a GIS. Presumably you could even use high resolution satellite or drone footage to automate much of the data collection. Interview the caretakers in situ recording GPS locations and times. Perfect project for colleges

[WalterBright]

I bought the Foxfire series of books written by students who went around documenting the old rural ways before that was all lost to time.

[zeristor]

https://www.penguinrandomhouse.com/series/C84/foxfire-series