Can't be a boulder cluster, no individual rock is classifiable as a boulder.
That's totally passable you sook.
Maybe if you kick some of the rocks out of the middle.
Rocky ground ? if it fell over.
I could be boring and suggest "man-made object", but where's the fun in that?
You calling me boring, Blair?
I was going for a rock wall
Yep, a black solid line with no tags..
In the draft of the new IOF descriptions you'll find the following: Cairn - a man made stone or pile of stones.
How do you make a stone? I guess you'd start with years of patience.