diff --git a/biomes/mountains.json b/biomes/mountains.json
index d4e15d2f..e27cc329 100644
--- a/biomes/mountains.json
+++ b/biomes/mountains.json
@@ -15,5 +15,13 @@
     "scatter":[
         "LONG_GRASS:2=0.04"
     ],
+    "rock": [
+        "STAINED_CLAY:9",
+        "STONE:5",
+        "STONE"
+    ],
+    "rockType": "simplex",
+    "rockDepth": 14,
+    "rockScale": 0.722,
     "dirtDepth": 0
 }
\ No newline at end of file
diff --git a/biomes/volcanic.json b/biomes/volcanic.json
index 10bc34bc..4e723cad 100644
--- a/biomes/volcanic.json
+++ b/biomes/volcanic.json
@@ -8,6 +8,9 @@
     "genScale": 2.15,
     "rarity": 3.5,
     "region": "tropical",
+    "cliffScale": 0.76,
+    "cliffChance": 0.752,
+    "cliffs": true,
     "subSurface": [
         "CONCRETE_POWDER:15"
     ],
@@ -22,5 +25,18 @@
         "CONCRETE:15",
         "CONCRETE:15"
     ],
-    "surfaceType": "simplex"
+    "rock":[
+        "STAINED_CLAY:15",
+        "STAINED_CLAY:15",
+        "CONCRETE:15",
+        "CONCRETE:15",
+        "CONCRETE:15",
+        "CONCRETE:15",
+        "CONCRETE:15",
+        "CONCRETE:15",
+        "CONCRETE:15"
+    ],
+    "rockDepth": 21,
+    "surfaceType": "simplex",
+    "rockType": "simplex"
 }
\ No newline at end of file