природная территория(The Gibraltar Rock State Natural Area became a Wisconsin-designated natural area in 1969. WK | The area was previously used for gravel and sand extraction before becoming a designated Natural Area. | But after that, this walk almost chops in half a sausage of land, the ex wetland, an English Nature designated natural area. Alexander Demidov)
природная территория(Natural Areas & Their Role. Natural Areas are sub-divisions of England, each with a characteristic association of wildlife and natural features. Alexander Demidov)