diff --git a/Caves-layers.md b/Caves-layers.md
index 8e57ea0..72044ef 100644
--- a/Caves-layers.md
+++ b/Caves-layers.md
@@ -3,9 +3,10 @@ layer bisher
 ```
      15200,         12501: Red sky, mars
      12500,         10000: Asteroids
-      3100,          1000: Clouds / Snow / Crystal
+      3900,          3500: Snow and Ice Floatlands
+      3500,          3101: Snow / Frost floatland
       3100,          1000: Living Floatlands
-      3100,          1000: Floatlands
+      3900,          1000: Floatlands
       1000,           200: Hallelujah Mountains
       2048,             0: Surface Biomes
          0,         -2048: Standard below biomes