Swamp Hills

Swamp Hills
Structures	Swamp Hut‌[BE only]
Features	Fossil Huge Mushroom‌[BE only]
Blocks	Grass Block; Water; Lily Pad; Clay; Vines; Oak Log; Oak Leaves; Blue Orchid; Mushrooms; Mushroom Blocks‌[BE only]
Climate
Temperature	0.8
Downfall	0.5
Precipitation	Yes
Colors
Grass color	; #6A7039; ; #4C763C
Foliage color	; #6A7039
Dry foliage color	; #7B5334
Water color	; #617B64
Water fog color	; #232317
Water fog distance‌[BE only]	30

This page describes content that has been removed from the game.

This feature was present in earlier versions of Java Edition, but has since been removed.

This article describes content that has been officially made unobtainable in Bedrock Edition.

It can still be obtained using third-party software. However, this can cause unexpected behavior such as bugs and crashes.

Swamp hills or swampland mutated were a rare variant of the swamp that no longer generate since Caves & Cliffs: Part II, and were removed in Java Edition.

Description

The swamp hills featured hillier terrain rising up between the flat marshes. These hills would tower over the otherwise low-elevation swamp, with some large areas at high elevation without any water. Additionally, flooded areas in swamp hills tended to reach lower depths than the rest of the swamp, sometimes deep enough to have a gravel floor in place of a dirt floor, like normal oceans. Swamp huts did not generate in swamp hills‌^{[Java Edition only]}, nor did slimes spawn, but fossils did still generate underground. Additionally, seagrass did not generate in flooded areas of swamp hills. If it connected to a jungle it had a chance to create a modified jungle edge biome.

The swamp hills had the same vegetation as the regular swamp, with swamp oaks, lily pads, blue orchids, mushrooms, and huge mushrooms‌^{[Bedrock Edition only]}.

Although this biome is called 'swamp hills', it did not actually generate as a 'hills' variant, but as a 'modified' variant of the swamp, making it slightly rarer.

Mobs

Swamp hills used the same mob spawning chances as regular swamps.

The following mobs spawned naturally here:

In **Java Edition**
Mob	Spawn weight	Group size
Creature category
Sheep	¹²⁄₄₀	4
Pig	¹⁰⁄₄₀	4
Chicken	¹⁰⁄₄₀	4
Cow	⁸⁄₄₀	4
Monster category
Spider	¹⁰⁰⁄₅₁₆	4
Zombie	⁹⁵⁄₅₁₆	4
Zombie Villager	⁵⁄₅₁₆	1
Skeleton	¹⁰⁰⁄₅₁₆	4
Creeper	¹⁰⁰⁄₅₁₆	4
Slime^{[note 1]}	¹⁰⁰⁄₅₁₆	4
Enderman	¹⁰⁄₅₁₆	1–4
Witch	⁵⁄₅₁₆	1
Slime^{[note 1]}	¹⁄₅₁₆	1
Ambient category
Bat	1	8

↑ ^a ^b Spawning is greatly affected by moon phase

In **Bedrock Edition**
Mob	Spawn weight	Group size
Creature category
Sheep	12	2–3
Pig	10	1–3
Chicken	10	2–4
Cow	8	2–3
Monster category
Spider	100	1
Zombie	95	2–4
Zombie Villager	5	2–4
Skeleton	80	1–2
Creeper	100	1
Slime^{[note 1]}	100	1
Enderman	10	1–2
Witch	5	1
Slime^{[note 1]}	100	1
Ambient category
Bat	1	2

↑ ^a ^b Spawning is greatly affected by moon phase

Data values

ID

Bedrock Edition:

Name	Identifier	Numeric ID
[No displayed name]	`swampland_mutated`	`134`

History

Java Edition

Java Edition
1.7.2	13w36a	Swampland M variant added, along with many other biomes. Its grass color now varies.
1.7.2	13w38b	Marsh-like areas and dead bushes no longer generate in swamp biomes.
1.8	14w26a	Marsh-like areas and dead bushes generate in swamp biomes again.
1.10	16w20a	Added fossils, which can generate in swamps.
1.13	18w14a	Seagrass now generates in swamps.
	18w15a	Changed the tint of water in the swamp biomes from blue to gray to match Bedrock Edition. However, swamp M still uses the same tint, resulting in chlorine-colored water.
	18w16a	"Swampland M" has been renamed to "Mutated Swampland".
	18w19a	"Mutated Swampland" has been renamed to "Swamp Hills".
	pre3	Swamp hills now use the correct water color.
September 28, 2019		During MINECON Live 2019, the swamp came in second place in the Biome Vote; mangrove trees, boats with chests, and frogs would be added.
1.14	18w43a	Drowned no longer spawn in swamps.
1.18	Experimental Snapshot 1	Swamp hills no longer generate naturally.
1.18	21w40a	The swamp hills biome has been removed.

Bedrock Edition

Pocket Edition Alpha
v0.9.0	build 1	Added swamps and swamp hills, along with many other biomes.
v0.10.0	build 1	The water in swamps is now tinted dark gray.
v0.10.0	build 1	Huge mushrooms now generate in swamps.
v0.13.0	build 1	Marsh-like areas no longer generate in swamps.
v0.14.0	build 1	Added witch huts, which generate in swamps.
Pocket Edition
1.1.3	alpha 1.1.3.0	Added fossils, which generate in swamps.
Bedrock Edition
1.2.13	beta 1.2.13.8	Added drowned, which can spawn in swamps.
1.10.0	beta 1.10.0.3	Drowned no longer spawn in swamps during the day.
1.18.0	beta 1.18.0.22	Swamp hills no longer generate naturally.

Legacy Console Edition

Legacy Console Edition
Xbox 360	Xbox One	PS3	PS4	PS Vita	Wii U	Switch
TU31	CU19	1.22	1.22	1.22	Patch 3		Added Swampland M variant.
TU31	CU19	1.22	1.22	1.22	Patch 3		Generation of marsh-like areas in swamp biomes has been changed.
TU43	CU33	1.36	1.36	1.36	Patch 13		Added fossils, which can generate in swamps.

Data history

Java Edition
1.13			pre5				The ID `mutated_swampland` has been changed to `swamp_hills`.
1.18			21w37a				Prior to the removal of numerical biome IDs, this biome's numerical ID was 134.

Gallery

A swamp hills biome in Bedrock Edition. There is no water visible here.
A swamp hut generated in a swamp hills biome in Bedrock Edition.
An overhang generated in a swamp hills.
A swamp hills biome generated next to a modified jungle edge.
Swamp hills in Java Edition
A swamp hills next to a river
A swamp hills single biome world.
An example of the temperature variation in swamps, leading to different shades of green for the grass blocks.
Same as the previous image, edited for better visibility.
Swamp hills with ray tracing

Navigation

[Slime-1] Spawning is greatly affected by moon phase

[Slime-2] Spawning is greatly affected by moon phase

[note 1]

[note 1]

Climate
Structures	Swamp Hut‌^{[BE only]}
Features	Fossil Huge Mushroom‌^{[BE only]}
Blocks	Grass Block Water Lily Pad Clay Vines Oak Log Oak Leaves Blue Orchid Mushrooms Mushroom Blocks‌^{[BE only]}
Temperature	0.8
Downfall	0.5
Precipitation	Yes
Colors
Grass color	#6A7039 #4C763C
Foliage color	#6A7039
Dry foliage color	#7B5334
Water color	#617B64
Water fog color	#232317
Water fog distance‌^{[BE only]}	30