diff --git a/OpenRA.FileFormats/TerrainColorSet.cs b/OpenRA.FileFormats/TerrainColorSet.cs
index 93782c3bbe..aa6fd169ea 100644
--- a/OpenRA.FileFormats/TerrainColorSet.cs
+++ b/OpenRA.FileFormats/TerrainColorSet.cs
@@ -21,12 +21,12 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Drawing;
-
+using System;
 namespace OpenRA.FileFormats
 {
 	public class TerrainColorSet
 	{
-		public readonly Dictionary<int, Color> colors = new Dictionary<int, Color>();
+		public readonly Dictionary<TerrainType, Color> colors = new Dictionary<TerrainType, Color>();
 
 		string NextLine( StreamReader reader )
 		{
@@ -51,17 +51,17 @@ namespace OpenRA.FileFormats
 				string line = NextLine( file );
 				if( line == null )
 					break;
-				
-				string[] entries = line.Split(',');
-				int key = int.Parse(entries[0]);
-				Color val = Color.FromArgb(int.Parse(entries[1]),int.Parse(entries[2]),int.Parse(entries[3]));
+				string[] kv = line.Split('=');
+				TerrainType key = (TerrainType)Enum.Parse(typeof(TerrainType),kv[0]);
+				string[] entries = kv[1].Split(',');
+				Color val = Color.FromArgb(int.Parse(entries[0]),int.Parse(entries[1]),int.Parse(entries[2]));
 				colors.Add(key,val);
 			}
 
 			file.Close();
 		}
 		
-		public Color ColorForTerrainType(int type)
+		public Color ColorForTerrainType(TerrainType type)
 		{
 			return colors[type];	
 		}
diff --git a/OpenRA.FileFormats/TileSet.cs b/OpenRA.FileFormats/TileSet.cs
index 5f446fc705..6860158ec8 100644
--- a/OpenRA.FileFormats/TileSet.cs
+++ b/OpenRA.FileFormats/TileSet.cs
@@ -99,7 +99,7 @@ namespace OpenRA.FileFormats
 			return missingTile;
 		}
 
-		public int GetTerrainType(TileReference r)
+		public TerrainType GetTerrainType(TileReference r)
 		{
 			if (r.tile == 0xff || r.tile == 0xffff)
 				r.image = 0;
diff --git a/OpenRA.FileFormats/Walkability.cs b/OpenRA.FileFormats/Walkability.cs
index 44e23fa7ea..ab62a356b3 100644
--- a/OpenRA.FileFormats/Walkability.cs
+++ b/OpenRA.FileFormats/Walkability.cs
@@ -20,9 +20,24 @@
 
 using System.Collections.Generic;
 using System.Linq;
-
+using System;
 namespace OpenRA.FileFormats
 {
+	public enum TerrainType : byte
+	{
+		Clear = 0,
+		Water = 1,
+		Road = 2,
+		Rock = 3,
+		Tree = 4,
+		River = 5,
+		Rough = 6,
+		Wall = 7,
+		Beach = 8,
+		Ore = 9,
+		Special = 10,
+	}
+	
 	public class TileTemplate
 	{
 		public int Index; // not valid for `interior` stuff. only used for bridges.
@@ -30,9 +45,9 @@ namespace OpenRA.FileFormats
 		public int2 Size;
 		public string Bridge;
 		public float HP;
-		public Dictionary<int, int> TerrainType = new Dictionary<int, int>();
+		public Dictionary<int, TerrainType> TerrainType = new Dictionary<int, TerrainType>();
 	}
-
+	
 	public class Walkability
 	{
 		Dictionary<string, TileTemplate> walkability 
@@ -53,11 +68,12 @@ namespace OpenRA.FileFormats
 						.Where(p => p.Key.StartsWith("tiletype"))
 						.ToDictionary(
 							p => int.Parse(p.Key.Substring(8)),
-							p => int.Parse(p.Value)),
+							p => (TerrainType)Enum.Parse(typeof(TerrainType),p.Value)),
 					Name = section.GetValue("Name", null).ToLowerInvariant(),
 					Bridge = section.GetValue("bridge", null),
 					HP = float.Parse(section.GetValue("hp", "0"))
 				};
+								
 				tile.Index = -1;
 				int.TryParse(section.Name.Substring(3), out tile.Index);
 
diff --git a/OpenRA.Game/Combat.cs b/OpenRA.Game/Combat.cs
index f4ea66bbe4..e704101b45 100644
--- a/OpenRA.Game/Combat.cs
+++ b/OpenRA.Game/Combat.cs
@@ -23,6 +23,7 @@ using System.Linq;
 using OpenRA.Effects;
 using OpenRA.GameRules;
 using OpenRA.Traits;
+using OpenRA.FileFormats;
 
 namespace OpenRA
 {
@@ -41,7 +42,7 @@ namespace OpenRA
 
 			var targetTile = ((1f / Game.CellSize) * loc.ToFloat2()).ToInt2();
 
-			var isWater = (Game.world.GetTerrainType(targetTile) == TerrainMovementType.Water);
+			var isWater = (Game.world.GetTerrainType(targetTile) == TerrainType.Water);
 				
 			if (warhead.Explosion != 0)
 				world.AddFrameEndTask(
diff --git a/OpenRA.Game/Graphics/Minimap.cs b/OpenRA.Game/Graphics/Minimap.cs
index 8152cba8d2..b20d77ef51 100644
--- a/OpenRA.Game/Graphics/Minimap.cs
+++ b/OpenRA.Game/Graphics/Minimap.cs
@@ -120,7 +120,7 @@ namespace OpenRA.Graphics
 				for (var y = world.Map.YOffset; y < world.Map.YOffset + world.Map.Height; y++)
 					for (var x = world.Map.XOffset; x < world.Map.XOffset + world.Map.Width; x++)
 						if (res.GetResource(new int2(x,y)) != null)
-							oreLayer.SetPixel(x, y, Color.FromArgb(alpha, terrainTypeColors[world.Map.Theater].ColorForTerrainType((int)TerrainMovementType.Ore)));
+							oreLayer.SetPixel(x, y, Color.FromArgb(alpha, terrainTypeColors[world.Map.Theater].ColorForTerrainType(TerrainType.Ore)));
 			}
 
 			mapOnlySheet.Texture.SetData(oreLayer);
@@ -151,7 +151,7 @@ namespace OpenRA.Graphics
 						var b = world.WorldActor.traits.Get<BuildingInfluence>().GetBuildingAt(new int2(x, y));
 						if (b != null)
 							*(c + (y * bitmapData.Stride >> 2) + x) =
-								(b.Owner != null ? Color.FromArgb(alpha, b.Owner.Color) : Color.FromArgb(alpha, terrainTypeColors[world.Map.Theater].ColorForTerrainType(4))).ToArgb();
+								(b.Owner != null ? Color.FromArgb(alpha, b.Owner.Color) : Color.FromArgb(alpha, terrainTypeColors[world.Map.Theater].ColorForTerrainType(TerrainType.Tree))).ToArgb();
 					}
 			}
 
diff --git a/OpenRA.Game/TerrainCosts.cs b/OpenRA.Game/TerrainCosts.cs
index a873df9152..45a4a0ef17 100644
--- a/OpenRA.Game/TerrainCosts.cs
+++ b/OpenRA.Game/TerrainCosts.cs
@@ -19,6 +19,7 @@
 #endregion
 
 using OpenRA.Graphics;
+using OpenRA.FileFormats;
 
 namespace OpenRA
 {
@@ -31,21 +32,6 @@ namespace OpenRA
 		Fly = 4,
 	}
 
-	public enum TerrainMovementType : byte
-	{
-		Clear = 0,
-		Water = 1,
-		Road = 2,
-		Rock = 3,
-		//Tree = 4,
-		River = 5,
-		Rough = 6,
-		Wall = 7,
-		Beach = 8,
-		Ore = 9,
-		Special = 10,
-	}
-
 	static class TerrainCosts
 	{
 		static float[][] costs = Util.MakeArray<float[]>(4,
@@ -57,7 +43,7 @@ namespace OpenRA
 			for( int i = 0 ; i < 11 ; i++ )
 			{
 				if( i == 4 ) continue;
-				var section = Rules.AllRules.GetSection( ( (TerrainMovementType)i ).ToString() );
+				var section = Rules.AllRules.GetSection( ( (TerrainType)i ).ToString() );
 				for( int j = 0 ; j < 4 ; j++ )
 				{
 					string val = section.GetValue( ( (UnitMovementType)j ).ToString(), "0%" );
@@ -67,14 +53,14 @@ namespace OpenRA
 			}
 		}
 		
-		public static bool Buildable(int r)
+		public static bool Buildable(TerrainType r)
 		{
-			return buildable[r];
+			return buildable[(int)r];
 		}
 		
-		public static float Cost( UnitMovementType unitMovementType, int r )
+		public static float Cost( UnitMovementType unitMovementType, TerrainType r )
 		{
-			return costs[ (byte)unitMovementType ][ r ];
+			return costs[ (byte)unitMovementType ][ (int)r ];
 		}
 	}
 }
diff --git a/OpenRA.Game/Traits/Crate.cs b/OpenRA.Game/Traits/Crate.cs
index b9761716eb..70f1d093d5 100644
--- a/OpenRA.Game/Traits/Crate.cs
+++ b/OpenRA.Game/Traits/Crate.cs
@@ -56,7 +56,7 @@ namespace OpenRA.Traits
 			this.self = self;
 			self.World.WorldActor.traits.Get<UnitInfluence>().Add(self, this);
 
-			if (self.World.GetTerrainType(self.Location) == TerrainMovementType.Water)
+			if (self.World.GetTerrainType(self.Location) == TerrainType.Water)
 				self.traits.Get<RenderSimple>().anim.PlayRepeating("water");
 		}
 
diff --git a/OpenRA.Game/WorldUtils.cs b/OpenRA.Game/WorldUtils.cs
index 3dfdf143ac..2df7b8254f 100755
--- a/OpenRA.Game/WorldUtils.cs
+++ b/OpenRA.Game/WorldUtils.cs
@@ -49,7 +49,7 @@ namespace OpenRA
 			if (world.WorldActor.traits.Get<UnitInfluence>().GetUnitsAt(a).Any(b => b != toIgnore)) return false;
 			
 			if (waterBound)
-				return world.Map.IsInMap(a.X,a.Y) && GetTerrainType(world,a) == TerrainMovementType.Water;
+				return world.Map.IsInMap(a.X,a.Y) && GetTerrainType(world,a) == TerrainType.Water;
 			
 			return world.Map.IsInMap(a.X, a.Y) && TerrainCosts.Buildable(world.TileSet.GetTerrainType(world.Map.MapTiles[a.X, a.Y]));
 		}
@@ -129,9 +129,9 @@ namespace OpenRA
 				.FirstOrDefault();
 		}
 		
-		public static TerrainMovementType GetTerrainType(this World world, int2 cell)
+		public static TerrainType GetTerrainType(this World world, int2 cell)
 		{
-			return (TerrainMovementType)world.TileSet.GetTerrainType(world.Map.MapTiles[cell.X, cell.Y]);
+			return (TerrainType)world.TileSet.GetTerrainType(world.Map.MapTiles[cell.X, cell.Y]);
 		}
 		
 		public static bool CanPlaceBuilding(this World world, string name, BuildingInfo building, int2 topLeft, Actor toIgnore)
diff --git a/mods/cnc/desert.col b/mods/cnc/desert.col
index 261fba9236..456a2042e9 100644
--- a/mods/cnc/desert.col
+++ b/mods/cnc/desert.col
@@ -1,13 +1,13 @@
 ; Minimap colors for cnc DESERT theater
-; Format: terraintype,R,G,B
-0,134,95,69
-1,93,165,206
-2,168,123,83
-3,116,90,63
-4,28,32,36
-5,111,132,139
-6,68,68,60
-7,208,192,160
-8,176,156,120
-9,161,226,28
-10,124,124,124
\ No newline at end of file
+; Format: terraintype=R,G,B
+Clear=134,95,69
+Water=93,165,206
+Road=168,123,83
+Rock=116,90,63
+Tree=28,32,36
+River=111,132,139
+Rough=68,68,60
+Wall=208,192,160
+Beach=176,156,120
+Ore=161,226,28
+Special=124,124,124
\ No newline at end of file
diff --git a/mods/cnc/temperat.col b/mods/cnc/temperat.col
index 5e510be3b9..7f8717c545 100644
--- a/mods/cnc/temperat.col
+++ b/mods/cnc/temperat.col
@@ -1,13 +1,13 @@
 ; Minimap colors for cnc TEMPERAT theater
 ; Format: terraintype,R,G,B
-0,40,68,40
-1,92,116,164
-2,88,116,116
-3,68,68,60
-4,28,32,36
-5,92,140,180
-6,68,68,60
-7,208,192,160
-8,176,156,120
-9,161,226,28
-10,124,124,124
\ No newline at end of file
+Clear=40,68,40
+Water=92,116,164
+Road=88,116,116
+Rock=68,68,60
+Tree=28,32,36
+River=92,140,180
+Rough=68,68,60
+Wall=208,192,160
+Beach=176,156,120
+Ore=161,226,28
+Special=124,124,124
\ No newline at end of file
diff --git a/mods/cnc/winter.col b/mods/cnc/winter.col
index 8fccd60983..89bdf32953 100644
--- a/mods/cnc/winter.col
+++ b/mods/cnc/winter.col
@@ -1,13 +1,13 @@
 ; Minimap colors for cnc WINTER theater
 ; Format: terraintype,R,G,B
-0,40,68,40
-1,92,116,164
-2,88,116,116
-3,68,68,60
-4,28,32,36
-5,92,140,180
-6,68,68,60
-7,208,192,160
-8,176,156,120
-9,161,226,28
-10,124,124,124
\ No newline at end of file
+Clear=40,68,40
+Water=92,116,164
+Road=88,116,116
+Rock=68,68,60
+Tree=28,32,36
+River=92,140,180
+Rough=68,68,60
+Wall=208,192,160
+Beach=176,156,120
+Ore=161,226,28
+Special=124,124,124
\ No newline at end of file
diff --git a/mods/ra/snow.col b/mods/ra/snow.col
index 9d40b90598..455299b8cb 100644
--- a/mods/ra/snow.col
+++ b/mods/ra/snow.col
@@ -1,13 +1,13 @@
 ; Minimap colors for ra SNOW theater
 ; Format: terraintype,R,G,B
-0,196,196,196
-1,92,116,164
-2,88,116,116
-3,68,68,60
-4,28,32,36
-5,92,140,180
-6,68,68,60
-7,208,192,160
-8,176,156,120
-9,148,128,96
-10,124,124,124
\ No newline at end of file
+Clear=196,196,196
+Water=92,116,164
+Road=88,116,116
+Rock=68,68,60
+Tree=28,32,36
+River=92,140,180
+Rough=68,68,60
+Wall=208,192,160
+Beach=176,156,120
+Ore=148,128,96
+Special=124,124,124
\ No newline at end of file
diff --git a/mods/ra/temperat.col b/mods/ra/temperat.col
index b8d8a1a62b..12192143da 100644
--- a/mods/ra/temperat.col
+++ b/mods/ra/temperat.col
@@ -1,13 +1,13 @@
 ; Minimap colors for ra TEMPERAT theater
 ; Format: terraintype,R,G,B
-0,40,68,40
-1,92,116,164
-2,88,116,116
-3,68,68,60
-4,28,32,36
-5,92,140,180
-6,68,68,60
-7,208,192,160
-8,176,156,120
-9,148,128,96
-10,124,124,124
\ No newline at end of file
+Clear=40,68,40
+Water=92,116,164
+Road=88,116,116
+Rock=68,68,60
+Tree=28,32,36
+River=92,140,180
+Rough=68,68,60
+Wall=208,192,160
+Beach=176,156,120
+Ore=148,128,96
+Special=124,124,124
\ No newline at end of file