Oooops, sorry. It's old news, I should have checked.

http://www.themodernantiquarian.com/post/38169

But it's still great. It means people that want to spend time at the stones can do so - but away from the monument itself. The new patch of grass is great for sitting around and enjoying the stones without worrying about damage to the area around the stones.

And it can get busy there, I had to wait for a while today, for people to leave the circle before I took a photo.