Impact Crater?? - Southeast Missouri

There is a perfectly round hole / lake in the soft alluvial soil of Southeast Missouri that appears to be an impact crater to me and a relatively fresh one at that. My mother is 78 and lived in West Tennessee in the early part of her life and she recalled a meteor that caused a sonic boom in the early 1940's and it supposedly impacted in the region according to news of the time. I was curious if THIS may have been where it hit. This has water inside the ring and a small ridge and then water outside the ring. Looks very natural, not man made.



Impact Crater.kmz (730 B)

Hi and welcome.

It appears to be man-made to assist in drainage. Big Oak Tree Park

Man made to facilitate accessing water in the bog for irrigation of surrounding crops.