Jay Delms from Shawnee, KS on 6/7/2023 9:44:25 AM:
On June 7th, 1804, the Lewis & Clarks Corp of Discovery traveling up the Missouri River noticed the "Curious Paintings" on a rock bluff along with the "red and green flint" reflection coming from there. There were several petroglyphs there then.
They landed there to check it out. They reported that the Indians had taken large amounts of flint from that spot. Also, they found a nest of rattle snakes from which they killed three big ones. Then, they left.