There are spooky stories about the mounds:
Giant Skeletons Found.
Goshen Daily News, Saturday, November, 26, 1892
ANDERSON, Ind., Nov. 36.—John Beal, a farmer living in the north part of this county, found some giant human skeletons while digging a hole in his field Friday. There were a half dozen skulls of gigantic size. The skeletons were those of men who in their lifetime must have been at least 9 feet in height.
Even scarier than pre-pre-Columbian giant angels: I woke in the night feeling cold! I turned up the thermostat and nothing happened.
April 14 was the night of the full moon.
I took a peek out the window and what appeared to be moonlight on grass was... after I went out, snow!
The tank gage failed and the furnace snuffed out. I bypassed the gauge and hooked up another tank in my pyjamas, fired the furnace, and went back to sleep.