I'm doing some searching on road easements and dedications and found a nice little paper by a Utah attorney from 2012. Although Utah specific I think it probably describes some very general and widely used legal concepts. Cites lots of cases and also statutory law.
Those who like to study the law should enjoy.
Public Roads and Private Lands - How Public Access Rights are Created, Used, and Abandonded in Utah
Thanks, I got a few pages in and decided that this article demanded more attention than I can give it at the moment. It is an interesting article as far as roads go.
"From Blazing Trails to Building Highways: SUWA v. BLM & Ancient Easements over Federal Public Lands" is also an interesting paper focusing on RS2477 road/trail issues.
Thanks, some more reading for the library. Always nice to have when needed. Jp