Thanks for reply, Cohan, was thining anyone with a glutin allergy should be cautious - don't know if it could affect one through the skin?
Made a couple of comments about the mountain scenes in my modified post above - we have quite a few plug of rock here on top of the mountains but I've never seen one on the side 
robin, without looking it up, not positive, but i suspect the gluten in wheat etc allergies, and the 'glutin'ous sticky stems are probably just two different modern uses of an original root word...
i think i know which rock you are talking about, i cropped a closer view of it, attached here--i assume what is going on there is that this mountain is composed of horizontal strata tipped up to near vertical, and since they are not all the same material, they are eroding at different rates: the softer layers eroding faster leaving dips, the hard stone eroding slowly and resulting in crags and outcroppings..
btw--sorry for poor image quality--this is a telephoto shot from the window of a moving vehicle, with water and bug spots on the windshield, then cropped for this view...lol
