Years ago, my in laws farmed west Iowa up in the hills and once in a while they would uncover Native American bones in the spring thaw. They’d call the sheriff who would usually contact one of the universities who determined it was Indian remains.
What I found scary is my wife’s father and grandfather both died on the same tractor and field where the bones were found. Her cousin and I were working on cleaning up a house fire when he told me tat story.
Where I live was absolutely lousy with Indians.
I rode my horse out in the woods all the time and there were lots of small
“ mounds” which my grandfather said were burial sites.
I was told to avoid them completely.
After my grandparents died I wish I knew what happened to the HUGE cardboard box full of arrowheads
Every time he plowed, they’d turn up by the hundreds.
Your recollection is indeed spooky.