Totally down with symbolic representations like maps not matching the reality they depict and therefore being "wrong" by definition. Also good with deliberately leaving some stuff off a map as a protective measure. But ....

The last time all I wanted was to check out the riverfront beach as a possible float trip take-out spot, and there were well-beaten trails identical in size, with no signs, where there was no indication of forks in the trail on the map. Grrr!

Solved by dead reckoning, noting sun position, and doing a little unplanned trail running. I annotated the map for future reference, but really ...!