FIGURE 1. The location of the Winterswijk quarry complex in 2008. 1.1) The location of the Netherlands in Europe. 1.2) The location of the quarry in the Netherlands. 1.3) The location of the quarry in the neighborhood of Winterswijk. 1.4) The Winterswijk Quarry complex. Strongly modified after Klompmaker and Van den Berkmortel (2007).