diff --git a/android/assets/jsons/Terrains.json b/android/assets/jsons/Terrains.json
index 9307267e45..c3bb8b43a0 100644
--- a/android/assets/jsons/Terrains.json
+++ b/android/assets/jsons/Terrains.json
@@ -59,7 +59,8 @@
 		production:2,
 		movementCost:2,
 		defenceBonus: 0.25,
-		RGB: [74,81,40]
+		RGB: [74,81,40],
+		rough: true
 	},
 	{
 		name:"Mountain",
@@ -87,7 +88,8 @@
 		overrideStats:true,
 		unbuildable:true,
 		defenceBonus: 0.25,
-		occursOn:["Tundra","Plains","Grassland","Hill"]
+		occursOn:["Tundra","Plains","Grassland","Hill"],
+		rough: true
 	},
 	{
 		name:"Jungle",
@@ -97,7 +99,8 @@
 		overrideStats:true,
 		unbuildable:true,
 		defenceBonus: 0.25,
-		occursOn:["Plains","Grassland"]
+		occursOn:["Plains","Grassland"],
+		rough: true
 	},
 	{
 		name:"Marsh",
diff --git a/android/assets/jsons/Translations/Other.json b/android/assets/jsons/Translations/Other.json
index 621e12ac5f..950f774c4a 100644
--- a/android/assets/jsons/Translations/Other.json
+++ b/android/assets/jsons/Translations/Other.json
@@ -3310,6 +3310,10 @@
 		Portuguese:"Custo de movimento"
     }
 
+	"Rough Terrain":{
+		German: "Unwegsames Gelände"
+	}
+
     " for ":{ //for example:+1 Gold for Gems,Gold,Silver
 		Italian:" per "
 		Simplified_Chinese:"，当建造在拥有下列资源的地块上时："
diff --git a/core/src/com/unciv/logic/map/TileInfo.kt b/core/src/com/unciv/logic/map/TileInfo.kt
index fd400c1e33..1d18152466 100644
--- a/core/src/com/unciv/logic/map/TileInfo.kt
+++ b/core/src/com/unciv/logic/map/TileInfo.kt
@@ -243,7 +243,7 @@ open class TileInfo {
         return listOf(abs(xDelta),abs(yDelta), abs(xDelta-yDelta)).max()!!.toInt()
     }
 
-    fun isRoughTerrain() = baseTerrain == Constants.hill || terrainFeature == Constants.forest || terrainFeature == Constants.jungle
+    fun isRoughTerrain() = getBaseTerrain().rough || getTerrainFeature()?.rough == true
 
     override fun toString(): String {
         val lineList = ArrayList<String>() // more readable than StringBuilder, with same performance for our use-case
diff --git a/core/src/com/unciv/models/gamebasics/tile/Terrain.kt b/core/src/com/unciv/models/gamebasics/tile/Terrain.kt
index 71080cb75e..afbe6b541a 100644
--- a/core/src/com/unciv/models/gamebasics/tile/Terrain.kt
+++ b/core/src/com/unciv/models/gamebasics/tile/Terrain.kt
@@ -33,6 +33,9 @@ class Terrain : NamedStats(), ICivilopedia {
                 sb.appendln("{Defence bonus}: ".tr()+(defenceBonus*100).toInt()+"%")
             }
 
+            if(rough)
+                sb.appendln("Rough Terrain".tr())
+
             return sb.toString()
         }
     lateinit var type: TerrainType
@@ -62,6 +65,7 @@ class Terrain : NamedStats(), ICivilopedia {
     var movementCost = 1
     var defenceBonus:Float = 0f
     var impassable = false
+    var rough = false
 
     fun getColor(): Color = colorFromRGB(RGB!![0], RGB!![1], RGB!![2])
 }
\ No newline at end of file