diff --git a/biomes/tundra/forest-cliffs.json b/biomes/tundra/forest-cliffs.json
index 0baa4701..62707cf2 100644
--- a/biomes/tundra/forest-cliffs.json
+++ b/biomes/tundra/forest-cliffs.json
@@ -6,13 +6,8 @@
     "vanillaDerivative": "TAIGA_MOUNTAINS",
     "generators": [
         {
-            "generator": "smooth-dunes",
-            "max": 14,
-            "min": 8
-        },
-        {
-            "min": 12,
-            "max": 17,
+            "min": 19,
+            "max": 28,
             "generator": "plain-cliffs"
         }
     ],
diff --git a/biomes/tundra/mountains-cliffs.json b/biomes/tundra/mountains-cliffs.json
index bd206410..7a704669 100644
--- a/biomes/tundra/mountains-cliffs.json
+++ b/biomes/tundra/mountains-cliffs.json
@@ -6,13 +6,8 @@
     "vanillaDerivative": "TAIGA_MOUNTAINS",
     "generators": [
         {
-            "min": 11,
-            "max": 32,
-            "generator": "mountain"
-        },
-        {
-            "min": 12,
-            "max": 62,
+            "min": 23,
+            "max": 94,
             "generator": "plain-cliffs"
         }
     ],
diff --git a/biomes/tundra/redwood-cliffs.json b/biomes/tundra/redwood-cliffs.json
index 94512bb2..905bf701 100644
--- a/biomes/tundra/redwood-cliffs.json
+++ b/biomes/tundra/redwood-cliffs.json
@@ -6,13 +6,8 @@
     "vanillaDerivative": "DARK_FOREST",
     "generators": [
         {
-            "min": 15,
-            "max": 25,
-            "generator": "mountain"
-        },
-        {
-            "min": 12,
-            "max": 25,
+            "min": 30,
+            "max": 50,
             "generator": "plain-cliffs"
         }
     ],