diff --git a/mods/MAPGEN/mcl_biomes/init.lua b/mods/MAPGEN/mcl_biomes/init.lua
index 2586d94e71..e4e172a470 100644
--- a/mods/MAPGEN/mcl_biomes/init.lua
+++ b/mods/MAPGEN/mcl_biomes/init.lua
@@ -28,18 +28,17 @@ local function register_biomes()
 	-- Icesheet
 	minetest.register_biome({
 		name = "icesheet",
-		node_dust = "mcl_core:snowblock",
-		node_top = "mcl_core:snowblock",
-		depth_top = 1,
-		node_filler = "mcl_core:snowblock",
+		node_top = "mcl_core:gravel",
+		depth_top = 2,
+		node_filler = "mcl_core:dirt",
 		depth_filler = 3,
 		node_stone = "mcl_core:packed_ice",
 		node_water_top = "mcl_core:ice",
-		depth_water_top = 10,
+		depth_water_top = 2,
 		node_river_water = "mcl_core:ice",
 		node_riverbed = "mcl_core:gravel",
 		depth_riverbed = 2,
-		y_min = -8,
+		y_min = 0,
 		y_max = mcl_vars.mg_overworld_max,
 		heat_point = 0,
 		humidity_point = 73,
@@ -47,18 +46,17 @@ local function register_biomes()
 
 	minetest.register_biome({
 		name = "icesheet_ocean",
-		node_dust = "mcl_core:snowblock",
-		node_top = "mcl_core:dirt",
-		depth_top = 1,
+		node_top = "mcl_core:gravel",
+		depth_top = 2,
 		node_filler = "mcl_core:dirt",
 		depth_filler = 3,
 		node_water_top = "mcl_core:ice",
-		depth_water_top = 10,
+		depth_water_top = 2,
 		node_river_water = "mcl_core:ice",
 		node_riverbed = "mcl_core:gravel",
 		depth_riverbed = 2,
 		y_min = mcl_vars.mg_overworld_min,
-		y_max = -9,
+		y_max = -1,
 		heat_point = 0,
 		humidity_point = 73,
 	})
@@ -175,7 +173,7 @@ local function register_biomes()
 		depth_filler = 2,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = 6,
+		y_min = 4,
 		y_max = mcl_vars.mg_overworld_max,
 		heat_point = 26,
 		humidity_point = 45,
@@ -189,7 +187,7 @@ local function register_biomes()
 		depth_filler = 2,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = 5,
+		y_min = 3,
 		y_max = 1,
 		heat_point = 26,
 		humidity_point = 45,
@@ -219,7 +217,7 @@ local function register_biomes()
 		depth_filler = 3,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = 6,
+		y_min = 4,
 		y_max = mcl_vars.mg_overworld_max,
 		heat_point = 47,
 		humidity_point = 73,  --was 70