diff --git a/ground/Mountain/moun_cave1.arc b/ground/Mountain/moun_cave1.arc
index 0270e33d4..dd340ebb9 100644
--- a/ground/Mountain/moun_cave1.arc
+++ b/ground/Mountain/moun_cave1.arc
@@ -6,5 +6,6 @@ color_fg grey
 no_pick 1
 editable 2
 is_floor 1
+smoothlevel 50
 visibility 50
 end
diff --git a/ground/Mountain/moun_cave2.arc b/ground/Mountain/moun_cave2.arc
index 804f7e0fa..1dfe0ed4a 100644
--- a/ground/Mountain/moun_cave2.arc
+++ b/ground/Mountain/moun_cave2.arc
@@ -6,5 +6,6 @@ no_pick 1
 editable 2
 is_floor 1
 visibility 50
+smoothlevel 50
 magicmap grey
 end
diff --git a/ground/Mountain/mountain1.arc b/ground/Mountain/mountain1.arc
index 176cd55cd..17a89e498 100644
--- a/ground/Mountain/mountain1.arc
+++ b/ground/Mountain/mountain1.arc
@@ -10,5 +10,6 @@ blocksview 1
 is_hilly 1
 slow_move 5
 editable 8
+smoothlevel 50
 is_floor 1
 end
diff --git a/ground/Mountain/mountain2.arc b/ground/Mountain/mountain2.arc
index f99494b60..8494c8dec 100644
--- a/ground/Mountain/mountain2.arc
+++ b/ground/Mountain/mountain2.arc
@@ -10,5 +10,6 @@ is_hilly 1
 slow_move 10
 blocksview 1
 editable 8
+smoothlevel 50
 is_floor 1
 end
diff --git a/ground/Mountain/mountain4.arc b/ground/Mountain/mountain4.arc
index 27c3de4a7..4bbf80c46 100644
--- a/ground/Mountain/mountain4.arc
+++ b/ground/Mountain/mountain4.arc
@@ -8,5 +8,6 @@ no_pick 1
 no_pass 1
 blocksview 1
 editable 8
+smoothlevel 50
 is_floor 1
 end
diff --git a/ground/Mountain/mountain5.arc b/ground/Mountain/mountain5.arc
index 7e90a874b..9db27ce2c 100644
--- a/ground/Mountain/mountain5.arc
+++ b/ground/Mountain/mountain5.arc
@@ -8,5 +8,6 @@ no_pick 1
 no_pass 1
 blocksview 1
 editable 8
+smoothlevel 50
 is_floor 1
 end