and the trigger? tks, kuduae.

hadn't notice the rock before - VERY interesting 'chunk' of history - - with so many stones stuck to and in it, maybe a lump of lava rolling along, almost hard, picking up stones, then abraded by eons of time's water and sand washing over it.? Also, the hardening cracks suggest this - quite amazing, and unique. I'm surprised it's not in someone's yard or made into a coffee table by now.