Very impressive Hal. What drew you to the washout area? Is it cutting thru a camp? Do you plan on expanding out?
A friend invited us out last year to look his property over for possible camp sites. No luck but Badger noticed some flint flakes in a small drainage.
We did a couple of 'test' scratchings and found a worked piece...that led to more serious excavations.
Have tried a few expanded test trenches, no good. Seems the bottom of the low just catches the small rocks, natural & man made that work their way down the side slopes.
We figure it's just ' indian country ' and the drainage angle shallow enough not to blast all the material out in the thousand year torrential deluges