diff --git a/mods/MAPGEN/mcl_biomes/init.lua b/mods/MAPGEN/mcl_biomes/init.lua
index 7882e34f7..220a3b023 100644
--- a/mods/MAPGEN/mcl_biomes/init.lua
+++ b/mods/MAPGEN/mcl_biomes/init.lua
@@ -193,7 +193,7 @@ local function register_biomes()
 		depth_filler = 2,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = -3,
+		y_min = -4,
 		y_max = 0,
 		humidity_point = 58,
 		heat_point = 8,
@@ -207,9 +207,10 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
 		y_min = OCEAN_MIN,
-		y_max = -4,
+		y_max = -5,
 		humidity_point = 58,
 		heat_point = 8,
+		vertical_blend = 1,
 	})
 
 	-- Mega Taiga
@@ -291,7 +292,7 @@ local function register_biomes()
 		depth_filler = 3,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 4,
-		y_min = -3,
+		y_min = -4,
 		y_max = 3,
 		humidity_point = 10,
 		heat_point = 45,
@@ -305,7 +306,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 4,
 		y_min = OCEAN_MIN,
-		y_max = -4,
+		y_max = -5,
+		vertical_blend = 1,
 		humidity_point = 10,
 		heat_point = 45,
 	})
@@ -391,7 +393,7 @@ local function register_biomes()
 		name = "StoneBeach",
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 1,
-		y_min = -6,
+		y_min = -7,
 		y_max = mcl_vars.mg_overworld_max,
 		humidity_point = 0,
 		heat_point = 8,
@@ -404,7 +406,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 1,
 		y_min = OCEAN_MIN,
-		y_max = -7,
+		y_max = -8,
+		vertical_blend = 2,
 		humidity_point = 0,
 		heat_point = 8,
 	})
@@ -770,7 +773,7 @@ local function register_biomes()
 		node_riverbed = "mcl_core:redsand",
 		depth_riverbed = 1,
 		node_stone = "mcl_colorblocks:hardened_clay_orange",
-		y_min = -3,
+		y_min = -4,
 		y_max = 10,
 		humidity_point = 0,
 		heat_point = 100,
@@ -784,7 +787,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
 		y_min = OCEAN_MIN,
-		y_max = -4,
+		y_max = -5,
+		vertical_blend = 1,
 		humidity_point = 0,
 		heat_point = 100,
 	})
@@ -833,7 +837,7 @@ local function register_biomes()
 		node_riverbed = "mcl_core:redsand",
 		depth_riverbed = 1,
 		node_stone = "mcl_colorblocks:hardened_clay_orange",
-		y_min = -3,
+		y_min = -5,
 		y_max = 10,
 		humidity_point = 0,
 		heat_point = 60,
@@ -847,7 +851,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
 		y_min = OCEAN_MIN,
-		y_max = -4,
+		y_max = -6,
+		vertical_blend = 1,
 		humidity_point = 0,
 		heat_point = 60,
 	})
@@ -895,8 +900,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:redsand",
 		depth_riverbed = 2,
 		node_stone = "mcl_colorblocks:hardened_clay_orange",
-		-- sand has wider reach than in other mesa biomes
-		y_min = -4,
+		-- red sand has wider reach than in other mesa biomes
+		y_min = -7,
 		y_max = 11,
 		humidity_point = -4,
 		heat_point = 80,
@@ -911,7 +916,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 3,
 		y_min = OCEAN_MIN,
-		y_max = -3,
+		y_max = -8,
+		vertical_blend = 2,
 		humidity_point = -4,
 		heat_point = 80,
 	})
@@ -1010,7 +1016,7 @@ local function register_biomes()
 		depth_filler = 3,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = -1,
+		y_min = -2,
 		y_max = 0,
 		humidity_point = 88,
 		heat_point = 81,
@@ -1024,7 +1030,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
 		y_min = OCEAN_MIN,
-		y_max = -2,
+		y_max = -3,
+		vertical_blend = 1,
 		humidity_point = 88,
 		heat_point = 81,
 	})
@@ -1052,7 +1059,7 @@ local function register_biomes()
 		depth_filler = 3,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = -1,
+		y_min = -2,
 		y_max = 0,
 		humidity_point = 92,
 		heat_point = 81,
@@ -1066,7 +1073,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
 		y_min = OCEAN_MIN,
-		y_max = -2,
+		y_max = -3,
+		vertical_blend = 1,
 		humidity_point = 92,
 		heat_point = 81,
 	})
@@ -1153,7 +1161,7 @@ local function register_biomes()
 		depth_filler = 3,
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
-		y_min = -4,
+		y_min = -5,
 		y_max = 0,
 		humidity_point = 90,
 		heat_point = 50,
@@ -1167,7 +1175,8 @@ local function register_biomes()
 		node_riverbed = "mcl_core:sand",
 		depth_riverbed = 2,
 		y_min = OCEAN_MIN,
-		y_max = -5,
+		y_max = -6,
+		vertical_blend = 1,
 		humidity_point = 90,
 		heat_point = 50,
 	})