Here is what looks like some sort of historic well ~ it's right beside the ice house. It's about 3 feet round. If you take off the cover there's water down there. The walls are made from metal. The cover is also heavy metal.
This is what it looks like inside:
The interier well looks pretty deep; we aren't able to tell how deep it is. We were told it may be something from the historic days used to produce electricity which was run to the house. We have another historic water well on the property which looks nothing like this.
This house was built in the mid 1800's, and there was a prior house on this property from the 1700's. If you know anything about such things, please let us know! I've researched it, but have found nothing online.