diff --git a/src/de/fhpotsdam/unfolding/providers/NLmaps.java b/src/de/fhpotsdam/unfolding/providers/NLmaps.java
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+++ b/src/de/fhpotsdam/unfolding/providers/NLmaps.java
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+package de.fhpotsdam.unfolding.providers;
+
+import de.fhpotsdam.unfolding.core.Coordinate;
+import de.fhpotsdam.unfolding.geo.MercatorProjection;
+import de.fhpotsdam.unfolding.geo.Transformation;
+
+/**
+ * Provider based on tiles from the Dutch government. Only describes the Netherlands. 
+ * https://nlmaps.nl/
+ * https://github.com/kadaster/nlmaps/
+ * 
+ * Available map styles:
+ * standaard: the default BRT-Achtergrondkaart in color
+ * pastel: in pastel tints
+ * grijs: in very low saturation
+ * luchtfoto: aerial imagery  
+ */
+public class NLmaps {
+	
+	public static abstract class GenericNLmapsProvider extends AbstractMapTileUrlProvider
+	{
+		public GenericNLmapsProvider() {
+			super(new MercatorProjection(26, new Transformation(1.068070779e7, 0.0, 3.355443185e7, 0.0,
+					-1.068070890e7, 3.355443057e7)));
+		}
+		
+		public String getZoomString(Coordinate coordinate) {
+			return (int) coordinate.zoom + "/" + (int) coordinate.column + "/" + (int) coordinate.row;
+		}
+
+		public int tileWidth() {
+			return 256;
+		}
+
+		public int tileHeight() {
+			return 256;
+		}
+
+		public abstract String[] getTileUrls(Coordinate coordinate);
+		
+		
+	}
+	
+	public static class Standaard extends GenericNLmapsProvider {
+		public Standaard() {
+		}
+
+		public String[] getTileUrls(Coordinate coordinate) {
+			// https://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaart/EPSG:3857/{z}/{x}/{y}.png
+			String url = "http://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaart/EPSG:3857/" +
+					getZoomString(coordinate) + ".png";
+			return new String[] { url };
+		}
+	}
+	
+	public static class Pastel extends GenericNLmapsProvider {
+		public Pastel() {
+		}
+
+		public String[] getTileUrls(Coordinate coordinate) {
+			// https://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaartpastel/EPSG:3857/{z}/{x}/{y}.png
+			String url = "http://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaartpastel/EPSG:3857/" +
+					getZoomString(coordinate) + ".png";
+			return new String[] { url };
+		}
+	}
+	
+	public static class Grijs extends GenericNLmapsProvider {
+		public Grijs() {
+		}
+
+		public String[] getTileUrls(Coordinate coordinate) {
+			// https://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaartpastel/EPSG:3857/{z}/{x}/{y}.png
+			String url = "http://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaartgrijs/EPSG:3857/" +
+					getZoomString(coordinate) + ".png";
+			return new String[] { url };
+		}
+	}
+	
+	
+	public static class Luchtfoto extends GenericNLmapsProvider {
+		public Luchtfoto() {
+		}
+
+		public String[] getTileUrls(Coordinate coordinate) {
+			// https://geodata.Io4.nl/luchtfoto/rgb/wmts/1.0.0/2016_ortho25/EPSG:3857/{z}/{x}/{y}.png
+			String url = "http://geodata.nationaalgeoregister.nl/luchtfoto/rgb/wmts/1.0.0/2016_ortho25/EPSG:3857/" +
+					getZoomString(coordinate) + ".png";
+			return new String[] { url };
+		}
+	}
+
+
+
+}