Crevasse

Crevasse
Biomes	Ice Caves
Generates in; existing chunks	Yes
Consists of	Brittle Ice; Water;

This article describes content that is currently in development.

This content has appeared in development versions for Fourth Drop 2026, but the full update adding it has not been released yet.

A crevasse is a feature that carves a winding tapered crevasse into exposed terrain. The crevasse follows the terrain surface, extending in opposite directions from its placement position and requires a minimum footprint before carving.

Data values

ID

Java Edition:

Feature type	Identifier
EnvSprite crevasse.png: Sprite image for crevasse in Minecraft [No displayed name]	`crevasse`

Bedrock Edition:

Feature	Identifier
EnvSprite crevasse.png: Sprite image for crevasse in Minecraft Crevasse	`crevasse_feature`

Config

Java Edition:

[NBT Compound / JSON Object] config
- [Int] max_width: The maximum cross-section width in blocks. Value between 2 and 8, inclusive.
- [Int] max_length: The maximum end-to-end length in blocks. Value between 4 and 16, inclusive.
- [Int] min_footprint: The minimum connected horizontal footprint required before carving. Value between 1 and 32, inclusive.
- [Int] cursor_surface_search_range: The maximum amount of blocks the cursor will scan downwards to find its next position. The number must not be negative.
- [Int] column_surface_search_range: The maximum amount of blocks each carving will scan downwards to find a carvable surface. The number must not be negative.
- [Float] twistiness: The amount of horizontal curvature. Value between 0.0 and 16.0, inclusive.
- [Float] tapering: The amount of tapering applied on each step of growing the crevasse. Value between 0.0 and 1.0, inclusive.
- [Float] turn_factor: The intensity of rotation applied on each step of growing the crevasse. Value between 0.0 and 1.0, inclusive.
- [Int] carve_depth: The carve depth below the origin terrain surface.
- [Int] fill_depth: The fill depth below the origin terrain surface.
- [String] surface_block: The block placed over the crevasse opening.
- [String] fill_block: The block placed at or below the selected fill depth.
- [NBT List / JSON Array] carvable_blocks: Which blocks the crevasse is allowed to remove.
- [NBT List / JSON Array] acceptable_barrier: Which pre-existing blocks to accept as part of a barrier.

Bedrock Edition:

[NBT Compound / JSON Object] config
- [Int] max_width: The maximum cross-section width in blocks. Value between 2 and 8, inclusive.
- [Int] max_length: The maximum end-to-end length in blocks. Value between 4 and 16, inclusive.
- [Int] min_footprint: The minimum connected horizontal footprint required before carving. Value between 1 and 32, inclusive.
- [Float] twistiness: The amount of horizontal curvature. Value between 0.0 and 16.0, inclusive.
- [Int] carve_depth: The carve depth below the origin terrain surface. Value between 4 and 32, inclusive.
- [Int] fill_depth: The fill depth below the origin terrain surface. Value between 0 and 32, inclusive.
- [String] surface_block: The block placed over the crevasse opening.
- [String] fill_block: The block placed at or below the selected fill depth.

An example

"format_version": "1.26.50",
"minecraft:crevasse_feature": {
    "identifier": "example:ice_crevasse_feature"
  "max_length": 16,
  "max_width": 4,
  "min_footprint": 10,
  "twistiness": 4.0,
  "carve_depth": {
    "range_min": 6,
    "range_max": 10
  "fill_depth": {
    "range_max": 6
  "surface_block": "minecraft:ice",
  "fill_block": "minecraft:water"
  }
  }
  }

History

Java Edition

Upcoming Java Edition
26.4			snap4				Added ice crevasses.

Bedrock Edition

Upcoming Bedrock Edition
26.70			Preview 26.70.20				Added crevasses.

Issues

Issues relating to "Crevasse" are maintained on the bug tracker. Issues should be reported and viewed there.

Biomes	Ice Caves
Generates in existing chunks	Yes
Consists of	Brittle Ice Water