section_path: Geography/Geology
section_name: Geology
paragraph_text: Geology
  
  The Netherlands is mostly composed of deltaic, coastal and aeolian derived sediments during the Pleistocene glacial and interglacial periods.
  
  Almost the entire west Netherlands is composed of the Rhine - Meuse river estuary. In the east of the Netherlands, remains are found of the last ice age, which ended approximately ten thousand years ago. As the continental ice sheet moved in from the north, it pushed moraine forward. The ice sheet halted as it covered the eastern half of the Netherlands. After the ice age ended, the moraine remained in the form of a long hill-line. The cities of Arnhem and Nijmegen are built on these hills.