Hi, The routes on AllTrails are nothing to do with OSM. AllTrails use OSM data as their base map and folk draw their own routes on top of that base map. No matter what the map says it won't have any effect on what some folk will do. 

The Welland is nowhere near these three tracks so I came confused as to how it links with tracks four miles away. Can you point out where the ford is and the farm yard? I could then have a look at OSM data in the area.

Regards Bernard.