We bought a small cabin and motel rental business in NE Michigan.
It was originally built in 1945, finished in the 1950s. Quite the place we understand back in its heyday.
There are 2 round "cement things" on the property. One is next to the original house/log cabin, estimated date about 1920. The other next to 1 of the original duplex cabins.
Both are on ground that is elevated, meaning uphill. They are about 5 feet across, circular in shape. The sides are about 6-8 inches of cement straight down, topped off with decorative rocks cemented in (as is a lot of the landscaping here). As far down as we can see it goes at least 4 feet or more. They do not hold water when it rains. There is no piping.
When we purchased it, there were wood covers over them, which were rotting, so we did replace those.
I have researched wells, dry wells and cisterns and they do not appear to be any of these. They can not possibly be for storm drainge as they are so far above ground level.
My question,of course, what are they then? Ideally I'd like to turn them into wishing wells, but if they are of use to the property, or of historic interest, I do not want to destroy that.
Any ideas appreciated.