diff --git a/src/layers/LayerList.js b/src/layers/LayerList.js
index ee4ad6e..eaa74e5 100644
--- a/src/layers/LayerList.js
+++ b/src/layers/LayerList.js
@@ -11,9 +11,6 @@ window.layerList = {
 		"OpenStreetMap FR": "L.tileLayer('http://{s}.tile.openstreetmap.fr/osmfr/{z}/{x}/{y}.png', { subdomains: 'abc', attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OpenStreetMap</a> | Tiles &copy <a href=\"http://tile.openstreetmap.fr/\">OSM France</a>', minZoom: 0, maxZoom: 20 })",
 		"Hike & Bike": "L.layerGroup([ L.tileLayer('http://toolserver.org/tiles/hikebike/{z}/{x}/{y}.png', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://hikebikemap.de/\">Colin Marquardt</a>' } ), L.tileLayer('http://toolserver.org/~cmarqu/hill/{z}/{x}/{y}.png', { minZoom: 0, maxZoom: 17 }) ])",
 		"CycleMap": "L.tileLayer('http://{s}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://www.opencyclemap.org\">Andy Allan</a>', minZoom: 0, maxZoom: 18 })",
-		"OpenMapSurfer": "L.tileLayer('http://korona.geog.uni-heidelberg.de/tiles/roads/x={x}&y={y}&z={z}', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://giscience.uni-hd.de/\">GIScience Heidelberg</a>', minZoom: 0, maxZoom: 19 })",
-		"OpenMapSurfer Contour": "L.layerGroup([ L.tileLayer('http://korona.geog.uni-heidelberg.de/tiles/roads/x={x}&y={y}&z={z}', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://giscience.uni-hd.de/\">GIScience Heidelberg</a>', minZoom: 0, maxZoom: 19 }), L.tileLayer('http://openmapsurfer.uni-hd.de/tiles/asterc/x={x}&y={y}&z={z}') ])",
-		"OpenMapSurfer Grayscale": "L.tileLayer('http://korona.geog.uni-heidelberg.de/tiles/roadsg/x={x}&y={y}&z={z}', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://giscience.uni-hd.de/\">GIScience Heidelberg</a>', minZoom: 0, maxZoom: 19 })",
 		"Humanitarian": "L.tileLayer('http://{s}.tile.openstreetmap.fr/hot/{z}/{x}/{y}.png', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OpenStreetMap</a> | Tiles &copy; <a href=\"http://hot.openstreetmap.org\">Humanitarian OSM Team</a>', minZoom: 0, maxZoom: 19 })",
 		"Transport": "L.tileLayer('http://{s}.tile2.opencyclemap.org/transport/{z}/{x}/{y}.png', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://www.opencyclemap.org\">Andy Allan</a>', minZoom: 0, maxZoom: 18 })",
 		"Landscape": "L.tileLayer('http://{s}.tile3.opencyclemap.org/landscape/{z}/{x}/{y}.png', { attribution: 'Map &copy; <a href=\"http://openstreetmap.org\">OSM</a> | Tiles &copy; <a href=\"http://www.opencyclemap.org\">Andy Allan</a>', minZoom: 0, maxZoom: 18 })",