Strange stone cliff of egg production

the great wonders of the world, you may not be strange forms of stone, but will lay eggs stone that you have met? In our country SanDou County SanGe Town climb out of the mountain there is a cliff will vomit an egg, the locals call it as 'egg cliff'.
egg cliff of the mountain is very strange, the whole is green carpet, luxuriantly green, green, green, and only pestle halfway up the mountain of the cliff. Egg cliff meters high, how much meters long. Inlaid on the cliff is a lot like egg stones, some just outcrops, some are stripping mountain, understands from the old man in villages, the cliff the next year or so will finally give birth to a stone egg, the whole cliff face has a lot of the stone nest egg.
climb out below aquarium shanzhai is a one thousand - year - old gu lu village, gu lu village every family collection this egg cliff stone egg, and the cause of the egg cliff to today is still a mystery, according to experts speculated that may be the environment through the rain, elegance and erosion caused by long time, but the specific cause there is no specific conclusions.