Collection of land reliefs in the Dutch territory.
Selected locations: Beemster (title image), Alblasserwaard, Valburg, Noordoostpolder, Haarlemmermeer
Source: The Polder Atlas of The Netherlands, by Clemens Steenbergen, Wouter Reh, Steffen Nijhuis, Michiel Pouderoijen. Hilversum: THOTH