A metal detectorist who stumbled upon what he believed was an old well in his backyard has been left baffled to discover it was something very different.

The man shared snaps of his exciting discovery to Reddit – only to be quickly corrected by fellow enthusiasts of the fascinating hobby.

“My wife and I found what looks like an old well in our backyard,” the man declared in the MetalDetecting subreddit. “As the title says, can anyone give me insight on what else this might be?”

He went ont to…