the quarry is an opencast mine where mainly limestone is extracted

waterway terrain wall geology ruins river reservoir cliff fortification coast bridge water transport rock infrastructure badlands sea quarry winterswijk near hamlet ratum opencast mine where mainly limestone extracted mineral land hole ecology crater countryside achterhoek buildings calcite concrete construction day dutch environment excavation exploitation extraction fauna fertilizer flora footprints fossils galena gelderland grind industrial industry landscape lime marcasite minerals nature reserve netherlands outdoor outside pyrite recreation road saurians sibelco site sky stone stones structure theater trias