diff --git a/mappings/net/minecraft/world/gen/feature/ConfiguredStructureFeature.mapping b/mappings/net/minecraft/world/gen/feature/ConfiguredStructureFeature.mapping
new file mode 100644
index 0000000000..0975f318c4
--- /dev/null
+++ b/mappings/net/minecraft/world/gen/feature/ConfiguredStructureFeature.mapping
@@ -0,0 +1 @@
+CLASS net/minecraft/class_5312 net/minecraft/world/gen/feature/ConfiguredStructureFeature
diff --git a/mappings/net/minecraft/world/gen/feature/DefaultFeatureConfig.mapping b/mappings/net/minecraft/world/gen/feature/DefaultFeatureConfig.mapping
index aa8140b700..2ac9465669 100644
--- a/mappings/net/minecraft/world/gen/feature/DefaultFeatureConfig.mapping
+++ b/mappings/net/minecraft/world/gen/feature/DefaultFeatureConfig.mapping
@@ -1 +1,3 @@
 CLASS net/minecraft/class_3111 net/minecraft/world/gen/feature/DefaultFeatureConfig
+	FIELD field_24893 CODEC Lcom/mojang/serialization/Codec;
+	FIELD field_24894 INSTANCE Lnet/minecraft/class_3111;
diff --git a/mappings/net/minecraft/world/gen/feature/StructureFeature.mapping b/mappings/net/minecraft/world/gen/feature/StructureFeature.mapping
index eb38fd6ebd..440a0968b4 100644
--- a/mappings/net/minecraft/world/gen/feature/StructureFeature.mapping
+++ b/mappings/net/minecraft/world/gen/feature/StructureFeature.mapping
@@ -1,5 +1,7 @@
 CLASS net/minecraft/class_3195 net/minecraft/world/gen/feature/StructureFeature
 	FIELD field_13879 LOGGER Lorg/apache/logging/log4j/Logger;
+	FIELD field_24842 STRUCTURES Lcom/google/common/collect/BiMap;
+	FIELD field_24862 STRUCTURE_TO_GENERATION_STEP Ljava/util/Map;
 	METHOD method_13149 getMonsterSpawns ()Ljava/util/List;
 	METHOD method_14015 locateStructure (Lnet/minecraft/class_4538;Lnet/minecraft/class_5138;Lnet/minecraft/class_2338;IZJLnet/minecraft/class_5314;)Lnet/minecraft/class_2338;
 		ARG 5 skipExistingChunks
@@ -7,6 +9,12 @@ CLASS net/minecraft/class_3195 net/minecraft/world/gen/feature/StructureFeature
 	METHOD method_14019 getName ()Ljava/lang/String;
 	METHOD method_14026 shouldStartAt (Lnet/minecraft/class_2794;Lnet/minecraft/class_1966;JLnet/minecraft/class_2919;IILnet/minecraft/class_1959;Lnet/minecraft/class_1923;Lnet/minecraft/class_3037;)Z
 	METHOD method_16140 getCreatureSpawns ()Ljava/util/List;
+	METHOD method_28659 configure (Lnet/minecraft/class_3037;)Lnet/minecraft/class_5312;
+		ARG 1 config
+	METHOD method_28661 register (Ljava/lang/String;Lnet/minecraft/class_3195;Lnet/minecraft/class_2893$class_2895;)Lnet/minecraft/class_3195;
+		ARG 0 name
+		ARG 1 structureFeature
+		ARG 2 step
 	CLASS class_3774 StructureStartFactory
 		METHOD create (Lnet/minecraft/class_3195;IILnet/minecraft/class_3341;IJ)Lnet/minecraft/class_3449;
 			ARG 1 feature