diff --git a/mappings/net/minecraft/world/chunk/Chunk.mapping b/mappings/net/minecraft/world/chunk/Chunk.mapping
index 1ccb0e3535..c1fa5924d5 100644
--- a/mappings/net/minecraft/world/chunk/Chunk.mapping
+++ b/mappings/net/minecraft/world/chunk/Chunk.mapping
@@ -1,9 +1,20 @@
 CLASS none/atm net/minecraft/world/chunk/Chunk
+	FIELD a NULL_BLOCK_INFO Lnone/atn;
+	FIELD b chunkX I
+	FIELD c chunkZ I
 	FIELD e LOGGER Lorg/apache/logging/log4j/Logger;
+	FIELD f blockInfo [Lnone/atn;
 	FIELD g biomeMap [B
 	FIELD k world Lnone/aiu;
 	FIELD l heightMap [I
 	FIELD n tileEntityMap Ljava/util/Map;
+	FIELD p terrainPopulated Z
+	FIELD q lightPopulated Z
+	FIELD w inhabitedTime J
+	METHOD <init> (Lnone/aiu;II)V
+		ARG 0 world
+		ARG 1 x
+		ARG 2 z
 	METHOD a getBlockState (III)Lnone/asj;
 		ARG 0 x
 		ARG 1 y
@@ -16,6 +27,13 @@ CLASS none/atm net/minecraft/world/chunk/Chunk
 		ARG 0 biomeMap
 	METHOD a setHeightMap ([I)V
 		ARG 0 heightMap
+	METHOD c setInhabitedTime (J)V
+		ARG 0 inhabitedTime
+	METHOD d setTerrainPopulated (Z)V
+		ARG 0 terrainPopulated
+	METHOD e setLightPopulated (Z)V
+		ARG 0 lightPopulated
 	METHOD l getBiomeMap ()[B
 	METHOD q getWorld ()Lnone/aiu;
 	METHOD r getHeightMap ()[I
+	METHOD s getTileEntityMap ()Ljava/util/Map;
diff --git a/mappings/net/minecraft/world/chunk/ChunkBlockInfo.mapping b/mappings/net/minecraft/world/chunk/ChunkBlockInfo.mapping
new file mode 100644
index 0000000000..887f7588a7
--- /dev/null
+++ b/mappings/net/minecraft/world/chunk/ChunkBlockInfo.mapping
@@ -0,0 +1 @@
+CLASS none/atn net/minecraft/world/chunk/ChunkBlockInfo
diff --git a/mappings/net/minecraft/world/chunk/ChunkNibbleArray.mapping b/mappings/net/minecraft/world/chunk/ChunkNibbleArray.mapping
new file mode 100644
index 0000000000..c951b6741b
--- /dev/null
+++ b/mappings/net/minecraft/world/chunk/ChunkNibbleArray.mapping
@@ -0,0 +1,27 @@
+CLASS none/ati net/minecraft/world/chunk/ChunkNibbleArray
+	FIELD a nibbleData [B
+	METHOD <init> ([B)V
+		ARG 0 nibbleData
+	METHOD a getNibbleData ()[B
+	METHOD a getNibble (I)I
+		ARG 0 index
+	METHOD a setNibble (II)V
+		ARG 0 nibblePos
+		ARG 1 block
+	METHOD a getNibble (III)I
+		ARG 0 x
+		ARG 1 y
+		ARG 2 z
+	METHOD a setNibble (IIII)V
+		ARG 0 x
+		ARG 1 y
+		ARG 2 z
+		ARG 3 nibble
+	METHOD b isEven (I)Z
+		ARG 0 index
+	METHOD b getNibbleIndex (III)I
+		ARG 0 x
+		ARG 1 y
+		ARG 2 z
+	METHOD c stripOneBit (I)I
+		ARG 0 nibblePos
diff --git a/mappings/net/minecraft/world/chunk/IChunkProvider.mapping b/mappings/net/minecraft/world/chunk/IChunkProvider.mapping
new file mode 100644
index 0000000000..f2ba56b537
--- /dev/null
+++ b/mappings/net/minecraft/world/chunk/IChunkProvider.mapping
@@ -0,0 +1,7 @@
+CLASS none/ath net/minecraft/world/chunk/IChunkProvider
+	METHOD a (II)Lnone/atm;
+		ARG 0 x
+		ARG 1 z
+	METHOD c (II)Lnone/atm;
+		ARG 0 x
+		ARG 1 z
diff --git a/mappings/none/aua.mapping b/mappings/none/aua.mapping
new file mode 100644
index 0000000000..63168817f9
--- /dev/null
+++ b/mappings/none/aua.mapping
@@ -0,0 +1,4 @@
+CLASS none/aua
+	METHOD a (Lnone/aiu;Lnone/dt;)Lnone/atm;
+		ARG 0 world
+		ARG 1 nbt
diff --git a/mappings/none/lt.mapping b/mappings/none/lt.mapping
new file mode 100644
index 0000000000..bdd3c2e603
--- /dev/null
+++ b/mappings/none/lt.mapping
@@ -0,0 +1,2 @@
+CLASS none/lt
+	FIELD a LOGGER Lorg/apache/logging/log4j/Logger;
diff --git a/mappings/none/od.mapping b/mappings/none/od.mapping
new file mode 100644
index 0000000000..61f5165b06
--- /dev/null
+++ b/mappings/none/od.mapping
@@ -0,0 +1,2 @@
+CLASS none/od
+	FIELD b entityByClassMap Ljava/util/Map;