Tuesday, December 14, 2021

500 BC

3 comments :

pwax said...

That is just great.

Norman said...

What site is this? I don't recognize the cairn as one found at the Oley site,
and this is the only site in PA that has tested using OSL for which we have dates.

pwax said...

This is a good example of piles that seem to expand the shape of the underlying boulder. Look how the top of the mound, rather than being flat is, in fact, parallel to the top of the boulder.

I believe this is shadow "tuning".