Well that one's easy ... it's the result of not using a whipper snipper after / before mowing ... even Speewa could tell you that!! Grass is way too high around that pointy torture seat for people who wish to separate their cheeks whilst around the fire.
Maybe it's where you put the ramps for budding young cyclists?
If there is one on the other side, maybe it's for a manually operated rotisierie?
Somewhere to put your foot whilst drinking beer around the fire?
Shin Skin Removal Tool?
Somewhere to lean your hot camp oven lid so it doesn't get any dirt and grime in the rim before you put it back on?
Could be some sort of "in camp" 4wd-ing tool?
Kit_e