What is it?

 Our property here on the mountainside in Colorado amounts to almost two acres. We have not landscaped, but have left things in a natural state. It is very rocky on this hillside and there are very few places where you could even dig a hole. Matter of fact in order to build our house they had to do a lot of blasting with dynamite. 

So I was a bit intrigued when on a walk a few years ago, I found this on a hill under a tree north of our driveway. It is an area without any rocks, just dirt, but completely  outlined with rocks and a large piece of pink granite at one end. The more I looked at it the more it looked like some sort of a grave. I have shown it to a lot of our guests and they have suggested maybe someone buried a dog up here before our house was built.

Although, it is an awful large area for just a dog. This town was a wild  west mining town back in the late 19th century. They did have a cemetery then, but maybe for some reason someone was buried up here. Or maybe they buried their gold or silver and never made it back to dig it up. Guess I will never know...unless I start digging, but don’t worry, I am not going to do that.