Gravelly Mountains+

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.

This page describes content that has been removed from Java Edition.

 

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

Gravelly Mountains+

Features	Oak Spruce
Blocks	Gravel Grass Block Snow Stone Emerald Ore Coal Ore Iron Ore Infested Stone Bush
Climate
Temperature	0.2
Downfall	0.3
Precipitation	Yes
Colors
Grass color	#8AB689
Foliage color	#6DA36B
Dry foliage color	#977752
Water color	#3F76E4‌[JE only]  #0E63AB‌[BE only]
Vibrant Visuals
Atmospherics	Default
Lighting	Cold
Volumetric fog	Semi-humid
Color grading	Coolish

The gravelly mountains+ or extreme hills plus trees mutated (also referred to as modified gravelly mountains internally in Java Edition) is a rare variant of the mountains that no longer generates since Caves & Cliffs: Part II, and was removed in Java Edition.

Like other mountain biomes, the gravelly mountains+ featured a mountainous terrain, often passing the minimum snow height at Y=90±8, with steep cliffs and floating islands. Like the regular gravelly mountains, the floor was mostly covered with gravel, with occasional blobs of grass blocks and stone in Java Edition, or one-block strips of grass blocks in Bedrock Edition. Oak and spruce trees rarely generated on the grass blocks. Emerald ore and infested stone sometimes replaced stone in this biome.

In Java Edition, the gravelly mountains+ had the exact same terrain and vegetation as the regular gravelly mountains.^[1]

In Bedrock Edition, the regular gravelly mountains did not generate trees, making this biome unique. Even though it contained fewer grass blocks than in Java Edition, trees were more common due to them generating at the same rate as in wooded mountains.

Gravelly mountains+ generated within mountain biomes roughly the same way as regular gravelly mountains did, but they also generated when a wooded mountains that generated between a desert and a snowy plains became modified. Usually, the desert and snowy plains became modified too and were replaced with desert lakes and ice spikes.

In Bedrock Edition, gravelly mountains+ in older worlds still received updates. When generated through single biome or behavior packs, they can also generate new blocks.

They appear similar to the old gravelly mountains+ with the addition of bushes. Animals spawned here use their cold variants. Snowfall is raised to Y=120±8, melting most snow in older worlds.

With Vibrant Visuals, unlike gravelly mountains, gravelly mountains+ use a coolish humid volumetric fog setting, which slightly fades the distance in an orange tint. Gravelly mountains+ have coolish color grading tints the environment with a colder blue color, and cold sunlight which appears slightly brighter at dusk and dawn.

Gravelly mountains+ have the same mob spawning chances as windswept hills.

The following mobs naturally spawn here:

In Java Edition

Mob	Spawn weight	Group size
Creature category
Sheep	12⁄45	4
Pig	10⁄45	4
Chicken	10⁄45	4
Cow	8⁄45	4
Llama	5⁄45	4–6
Monster category
Spider	100⁄515	4
Zombie	95⁄515	4
Zombie villager	5⁄515	1
Skeleton	100⁄515	4
Creeper	100⁄515	4
Slime[note 1]	100⁄515	4
Enderman	10⁄515	1–4
Witch	5⁄515	1
Ambient category
Bat	1	8

In Bedrock Edition

Mob	Spawn weight	Group size
Monster category
Creeper	100	1
Slime[note 1]	100	1
Spider	100	1
Zombie	95	2–4
Skeleton	80	1–2
Enderman	10	1–2
Witch	5	1
Zombie Villager	5	2–4
Creature category
Sheep	12	2–3
Cold Chicken	10	2–4
Glow Squid	10	2–4
Cold Pig	10	1–3
Cold Cow	8	2–3
Llama	5	4–6
Ambient category
Bat	1	2

Bedrock Edition:

Name	Identifier	Numeric ID
[No displayed name]	extreme_hills_plus_trees_mutated	162

Issues relating to "Extreme Hills Plus Trees Mutated" are maintained on the bug tracker. Issues should be reported and viewed there.

• 
  Gravelly mountains+ in Bedrock Edition.
• 
  Another gravelly mountains+ biome.
• 
  A regular gravelly mountains biome in Bedrock Edition for comparison. This biome does not have trees.
• 
  A gravelly mountains+ single biome world.
• 
  A regular gravelly mountains single biome world, showing that it is exactly the same.
• 
  A gravelly mountains+ biome generated as the border between desert lakes and ice spikes.
• 
  Gravelly mountains+ with ray tracing.

• Windswept Gravelly Hills
• Windswept Forest
• Windswept Hills
• Mountain Edge
• Mountains
• Biome/Before 1.18

v t e Biomes
Overworld Landforms Beach Snowy Stony Shore River Frozen Snowy Frozen Peaks Grove Jagged Peaks Snowy Plains Ice Spikes Snowy Slopes Snowy Taiga Cold Taiga Old Growth Pine Old Growth Spruce Windswept Hills Forest Gravelly Dappled Forest​[upcoming: Third Drop 2026] Temperate Birch Forest Old Growth Cherry Grove Dark Forest Pale Garden Forest Flower Meadow Mushroom Fields Plains Sunflower Swamp Warm Badlands Eroded Wooded Desert Jungle Bamboo Sparse Mangrove Swamp Savanna Plateau Windswept Stony Peaks Ocean Frozen Ocean Deep Cold Ocean Deep Ocean Deep Lukewarm Ocean Deep Warm Ocean Caves Deep Dark Dripstone Caves Lush Caves Sulfur Caves
The Nether Basalt Deltas Crimson Forest Nether Wastes Soul Sand Valley Warped Forest
The End JE Central The End Outer End Barrens End Highlands End Midlands Small End Islands BE The End
Other Specialized JE only The Void Unused/removed Hills Birch Forest Hills Desert Hills Jungle Hills Bamboo Snowy Mountains Taiga Hills Giant Tree Snowy Wooded Hills Modified Dark Forest Hills Desert Lakes Modified Badlands Plateau Wooded Modified Jungle Edge Swamp Hills Taiga Mountains Snowy Modified hills Giant Spruce Taiga Hills Gravelly Mountains+ Shattered Savanna Plateau Tall Birch Hills Other Badlands Plateau Deep Warm Ocean Mountain Edge Mushroom Field Shore BE only Legacy Frozen Ocean Proto-biomes Removed Ice Desert Rainforest Seasonal Forest Shrubland Tundra Unimplemented Sky Joke 20w14∞ _generated:id Between Biome For Player With No Time For Nonsense Shapes 24w14potato Arboretum Corruption Fields Hash Wasteland Others Hub The Moon