Permaculture rocks - no, I mean actual rocks

Chris, I believe I've seen broken concrete referred referred to as "urbanite."  They've recently demolished a building in town that was gutted by fire last year and I've been drooling over the piles of brick and concrete.  

I really enjoyed looking at all the beautiful rock creations everyone has made. Thanks for sharing! Here are a couple of my meager efforts at using my stones. I'm still working on using them all up.

I have  friends who live on a mountianous 'rock farm'
I taught them the following uses of rocks;
- on contour rock ledges in an olive grove on a hill to capture silt and moisture for the trees.
- dry stone walling for a set of walls at their gateway.
- I built a pair of loveseats at the hill top for the two of them.
- reinforcing the drive edge as it goes around a dam.
- erosion control in a manmade water channel to prevent erosion.
There are many rocks left, so I keep thinking of good uses for them.