I used to have northern WI hunting property that I did not realize had no recorded easement until I needed to sell it 12 years later and had already found a buyer. Apparently the "easement" (represented on an aerial photo by seller), had been specifically excluded by title insurance, and was only guaranteed by a company that was effectively the seller himself. This was discovered a year before my attempted sale when someone purchased 160 landlocked acres, and an adjoining neighbor offered to let him use our easement (which would be improved for logging). Not only did we not have an easement, but our properties were incorrectly marked, and that neighbor had to move his cabin from that guy's 160 acres.
The "easement" and measurement errors were apparently based on a 1910 survey for a highway (that never existed) and a verbal aggreement with the easement owner (now former owner). The current easement owners initially said we could use it, but would not put anything in writing. They later set a future date when they said they would lock us out. The buyer backed out at that point.
I thought there would be something like "right of emminent domain" where if we had been using an easement for years without protest, we could continue to use it. But no such protection in WI statutes, and "adverse possesion" does not apply to easements.
I ended up selling to a non-involved adjoining neighbor who is on a township road for my original purchase price (less attorney fees), which is ahead of where I would have been attempting to sue the seller (less more attorney fees). I guess I trusted him because I still have a plot of southern WI woods I bought from his partner years earlier (on a county highway).