I can't help looking at unusual terrain without thinking, "How would I defend or attack this?" I suppose it's a holdover habit from my training at Infantry Officer Candidate School. Well, when this link was delivered to me in an email, I was introduced to the "Karst". Ever hear of it? I hadn't. Apparently, I've seen a few but didn't know the geologic term used to describe it. The one that really caught my attention is the Stone Forest. Enjoy...