diff --git a/core/src/main/java/art/arcane/iris/generation/hydrology/cave/HydrologyCaveStorage.java b/core/src/main/java/art/arcane/iris/generation/hydrology/cave/HydrologyCaveStorage.java
index 736df5051..5d9e6fc3a 100644
--- a/core/src/main/java/art/arcane/iris/generation/hydrology/cave/HydrologyCaveStorage.java
+++ b/core/src/main/java/art/arcane/iris/generation/hydrology/cave/HydrologyCaveStorage.java
@@ -15,7 +15,7 @@ public final class HydrologyCaveStorage {
         }
         int chunkX = x >> 4;
         int chunkZ = z >> 4;
-        TectonicPlate<Matter> plate = mantle.getLoadedRegions().get(Mantle.key(chunkX >> 5, chunkZ >> 5));
+        TectonicPlate<Matter> plate = mantle.getLoadedRegion(chunkX >> 5, chunkZ >> 5);
         if (plate == null || plate.isClosed()) {
             return null;
         }
diff --git a/core/src/main/java/art/arcane/iris/generation/stage/IrisCarveModifier.java b/core/src/main/java/art/arcane/iris/generation/stage/IrisCarveModifier.java
index 64bf27b3e..7036f22f0 100644
--- a/core/src/main/java/art/arcane/iris/generation/stage/IrisCarveModifier.java
+++ b/core/src/main/java/art/arcane/iris/generation/stage/IrisCarveModifier.java
@@ -579,7 +579,7 @@ public class IrisCarveModifier extends EngineAssignedModifier<NativeBlockState>
     }
 
     private MantleChunk<Matter> existingMantleChunk(Mantle<Matter> mantle, int chunkX, int chunkZ) {
-        TectonicPlate<Matter> plate = mantle.getLoadedRegions().get(Mantle.key(chunkX >> 5, chunkZ >> 5));
+        TectonicPlate<Matter> plate = mantle.getLoadedRegion(chunkX >> 5, chunkZ >> 5);
         if (plate == null || plate.isClosed()) {
             return null;
         }
diff --git a/core/src/main/java/art/arcane/iris/world/history/GenerationHistoryRuntimeRouter.java b/core/src/main/java/art/arcane/iris/world/history/GenerationHistoryRuntimeRouter.java
index 919d219c7..9ef3809b1 100644
--- a/core/src/main/java/art/arcane/iris/world/history/GenerationHistoryRuntimeRouter.java
+++ b/core/src/main/java/art/arcane/iris/world/history/GenerationHistoryRuntimeRouter.java
@@ -557,7 +557,7 @@ public final class GenerationHistoryRuntimeRouter implements AutoCloseable {
                 Mantle<Matter> mantle = access.mantle();
                 MantleChunk<Matter> anchor = mantle.getChunk(regionX << 5, regionZ << 5).use();
                 try {
-                    TectonicPlate<Matter> plate = mantle.getLoadedRegions().get(Mantle.key(regionX, regionZ));
+                    TectonicPlate<Matter> plate = mantle.getLoadedRegion(regionX, regionZ);
                     HashMap<Long, ObjectContinuationBundle> bundles = new HashMap<>();
                     for (int x = 0; x < 32; x++) {
                         for (int z = 0; z < 32; z++) {
diff --git a/core/src/test/java/art/arcane/iris/generation/stage/IrisCarveBoundaryFacesTest.java b/core/src/test/java/art/arcane/iris/generation/stage/IrisCarveBoundaryFacesTest.java
index 85c9eca15..80f4c5aa4 100644
--- a/core/src/test/java/art/arcane/iris/generation/stage/IrisCarveBoundaryFacesTest.java
+++ b/core/src/test/java/art/arcane/iris/generation/stage/IrisCarveBoundaryFacesTest.java
@@ -21,7 +21,6 @@ import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.Mockito.CALLS_REAL_METHODS;
 import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
 import static org.mockito.Mockito.doReturn;
@@ -72,7 +71,7 @@ public class IrisCarveBoundaryFacesTest {
         matter[0][0].slice(PreObjectMatterCell.class).set(0, 5, 0, PreObjectMatterCell.cavern(null));
         Mantle<Matter> mantle = mock(Mantle.class, RETURNS_DEEP_STUBS);
         TectonicPlate<Matter> plate = mock(TectonicPlate.class);
-        when(mantle.getLoadedRegions().get(anyLong())).thenReturn(plate);
+        when(mantle.getLoadedRegion(anyInt(), anyInt())).thenReturn(plate);
         when(plate.get(31, 0)).thenReturn(chunks[1]);
         when(plate.get(1, 0)).thenReturn(chunks[2]);
         when(plate.get(0, 31)).thenReturn(chunks[3]);