diff --git a/core/src/main/java/com/volmit/iris/engine/actuator/IrisTerrainNormalActuator.java b/core/src/main/java/com/volmit/iris/engine/actuator/IrisTerrainNormalActuator.java
index 7d602021e..646ca0773 100644
--- a/core/src/main/java/com/volmit/iris/engine/actuator/IrisTerrainNormalActuator.java
+++ b/core/src/main/java/com/volmit/iris/engine/actuator/IrisTerrainNormalActuator.java
@@ -106,6 +106,14 @@ public class IrisTerrainNormalActuator extends EngineAssignedActuator<BlockData>
                     }
                 }
 
+                BlockData ore = biome.generateOres(realX, i, realZ, rng, getData(), true);
+                ore = ore == null ? region.generateOres(realX, i, realZ, rng, getData(), true) : ore;
+                ore = ore == null ? getDimension().generateOres(realX, i, realZ, rng, getData(), true) : ore;
+                if (ore != null) {
+                    h.set(xf, i, zf, ore);
+                    continue;
+                }
+
                 if (i > he && i <= hf) {
                     fdepth = hf - i;
 
@@ -138,9 +146,9 @@ public class IrisTerrainNormalActuator extends EngineAssignedActuator<BlockData>
                         continue;
                     }
 
-                    BlockData ore = biome.generateOres(realX, i, realZ, rng, getData());
-                    ore = ore == null ? region.generateOres(realX, i, realZ, rng, getData()) : ore;
-                    ore = ore == null ? getDimension().generateOres(realX, i, realZ, rng, getData()) : ore;
+                    ore = biome.generateOres(realX, i, realZ, rng, getData(), false);
+                    ore = ore == null ? region.generateOres(realX, i, realZ, rng, getData(), false) : ore;
+                    ore = ore == null ? getDimension().generateOres(realX, i, realZ, rng, getData(), false) : ore;
 
                     if (ore != null) {
                         h.set(xf, i, zf, ore);
diff --git a/core/src/main/java/com/volmit/iris/engine/object/IrisBiome.java b/core/src/main/java/com/volmit/iris/engine/object/IrisBiome.java
index 0b4eb11c3..ac1390d83 100644
--- a/core/src/main/java/com/volmit/iris/engine/object/IrisBiome.java
+++ b/core/src/main/java/com/volmit/iris/engine/object/IrisBiome.java
@@ -171,12 +171,14 @@ public class IrisBiome extends IrisRegistrant implements IRare {
     @ArrayType(type = IrisOreGenerator.class, min = 1)
     private KList<IrisOreGenerator> ores = new KList<>();
 
-    public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data) {
+    public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data, boolean surface) {
         if (ores.isEmpty()) {
             return null;
         }
         BlockData b = null;
         for (IrisOreGenerator i : ores) {
+            if (i.isGenerateSurface() != surface)
+                continue;
 
             b = i.generate(x, y, z, rng, data);
             if (b != null) {
diff --git a/core/src/main/java/com/volmit/iris/engine/object/IrisDimension.java b/core/src/main/java/com/volmit/iris/engine/object/IrisDimension.java
index f2c5b724c..0459e1d06 100644
--- a/core/src/main/java/com/volmit/iris/engine/object/IrisDimension.java
+++ b/core/src/main/java/com/volmit/iris/engine/object/IrisDimension.java
@@ -253,12 +253,14 @@ public class IrisDimension extends IrisRegistrant {
         return (int) getDimensionHeight().getMin();
     }
 
-    public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data) {
+    public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data, boolean surface) {
         if (ores.isEmpty()) {
             return null;
         }
         BlockData b = null;
         for (IrisOreGenerator i : ores) {
+            if (i.isGenerateSurface() != surface)
+                continue;
 
             b = i.generate(x, y, z, rng, data);
             if (b != null) {
diff --git a/core/src/main/java/com/volmit/iris/engine/object/IrisRegion.java b/core/src/main/java/com/volmit/iris/engine/object/IrisRegion.java
index 158f04f3e..a2712786a 100644
--- a/core/src/main/java/com/volmit/iris/engine/object/IrisRegion.java
+++ b/core/src/main/java/com/volmit/iris/engine/object/IrisRegion.java
@@ -151,12 +151,14 @@ public class IrisRegion extends IrisRegistrant implements IRare {
     @ArrayType(type = IrisOreGenerator.class, min = 1)
     private KList<IrisOreGenerator> ores = new KList<>();
 
-    public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data) {
+    public BlockData generateOres(int x, int y, int z, RNG rng, IrisData data, boolean surface) {
         if (ores.isEmpty()) {
             return null;
         }
         BlockData b = null;
         for (IrisOreGenerator i : ores) {
+            if (i.isGenerateSurface() != surface)
+                continue;
 
             b = i.generate(x, y, z, rng, data);
             if (b != null) {