If you look at the Top Photo from 1940
that is a large lake & If you look at a recent Photo at the bottom
it's either Field or a Large group of trees
The 40 pik also appears to have a Breast to the South.
I would Research that closer.
Ketner dam. Yeah. I've hunted those woods, camped at the dam, I've pretty much lived my whole life in those woods. I can tell you just about anything and everything you need to know about ketner dam.