Giant 1917 chalk map of Australia carved into a Wiltshire hillside by homesick soldiers is restored | Daily Mail Online
Principal aquifers in England and Wales | Aquifer, shale and clay maps | Aquifers and shales | Groundwater | Our research | British Geological Survey (BGS)
CHALK MAP OF THE UNITED STATES POSTER - 22x34 - GEOGRAPHY USA 14747 | eBay