diff --git a/Assets/Scripts/LoraxCuller.cs b/Assets/Scripts/LoraxCuller.cs
index fdf1f86..fc7ebd9 100644
--- a/Assets/Scripts/LoraxCuller.cs
+++ b/Assets/Scripts/LoraxCuller.cs
@@ -23,23 +23,37 @@ public class LoraxCuller : MonoBehaviour {
     }
 
     private void Update() {
-        for (int LoraxIndex = 0; LoraxIndex < Loraces.Length; LoraxIndex++) {
-            for (int ChunkIndex = 0; ChunkIndex < ChunkKeepAliveTransforms.Count; ChunkIndex++) {
-                GameObject OldChunk = EnabledChunks[LoraxIndex][ChunkIndex];
-                if (OldChunk != null) {
-                    OldChunk.SetActive(false);
-                }
-            }
-        }
-
+        Hashtable Refs = new Hashtable();
         for (int LoraxIndex = 0; LoraxIndex < Loraces.Length; LoraxIndex++) {
             Lorax Lorax = Loraces[LoraxIndex];
             for (int ChunkIndex = 0; ChunkIndex < ChunkKeepAliveTransforms.Count; ChunkIndex++) {
                 Vector3 KeepAlivePosition = ChunkKeepAliveTransforms[ChunkIndex].position;
                 GameObject NewChunk = Lorax.GetChunkAt(KeepAlivePosition.x, KeepAlivePosition.z);
+                GameObject OldChunk = EnabledChunks[LoraxIndex][ChunkIndex];
                 NewChunk.SetActive(true);
+
+                if (Refs.ContainsKey(NewChunk)) {
+                    Refs[NewChunk] = (int)Refs[NewChunk] + 1;
+                } else {
+                    Refs[NewChunk] = 1;
+                }
+                if (NewChunk != OldChunk && OldChunk != null) {
+                    // No longer pointing to OldChunk, remove ref
+                    if (Refs.ContainsKey(OldChunk)) {
+                        Refs[OldChunk] = (int)Refs[OldChunk] - 1;
+                    } else {
+                        Refs[OldChunk] = -1;
+                    }
+                }
+
                 EnabledChunks[LoraxIndex][ChunkIndex] = NewChunk;
             }
         }
+
+        foreach (GameObject Key in Refs.Keys) {
+            if ((int)Refs[Key] < 0) {
+                Key.SetActive(false);
+            }
+        }
     }
 }