..confused me a bit, since anything like that isn´t shown on Skyrim map. It was a minor quest anyways, so I let it be for a loooong time, until I eventually, by accident, found my way to Falkreath Watchtower. Nothing new there, but after I cleared/looted the place, the questmarker updated and told me to return.. wait, what?
I opened the "inside" map, you know the map when you´re in in a ruin or the like, and tadaa: the name changed into Crossroads Watchtower?!? I closed the map, it was Falkreath Watchtower again. What the heck, Skyrim? Three years of hard playing, and I had never even heard of this :D
Yes, I then found a few topics about this elsewhere, so I figured if someone got the same quest (from the Companions "the missing hairloom" or something like that), so that at least there would be a note of this as I couldn´t find anything from the Wikipages. Perhaps the gamemakers intended to change the name but just forgot all about it, Idk :D