The problem in my area isn't so much as being unmarked, just a poor, lazy way they do it! The stakes are falling over in a couple of days. Granted the holes may freeze down quickly, lets say 12", but with the surrounding ice at 20", thats a thin spot for the rest of season! Then add some snow on top of it, could lead to a bad situation! By law the stakes are to be frozen into the ice! Drilling a hole, packing the slush back in it and pushing the stake in at least a foot, is one good way of doing it! Pushing the stake in the snow, or froze into the slush on the surface, doesn't cut it!
