Triangular Shapes

Geophile

I received a note from Bruce in Ottawa, with six pictures and the observation:

I'm noticing a fair number of stones that appear to have been propped up such that they form a triangle shape pointing straight up. Or in one case a three-sided shape.

Which reminded me of this stone, one of the many interesting stone features we saw on our visit to Massachusetts. It was close to some rock piles and a split-wedged boulder in an area with many walls and a natural rock ledge. I know they're probably natural, but the markings near the bottom reminded me of cup marks I've seen in pictures of stones in Great Britain and along the Susquehanna in PA.

I have more pictures to post, including Bruce's, and will do so at some point. My husband is out of the hospital but still convalescing. Check for ticks!