JourneyMap Ore Heatmap
JourneyMap Ore Heatmap, a NeoForge utility, colors each explored chunk by how dense its ores are, so players can see where ore concentrations lie across the world.
What it does
Once a chunk is scanned, the heatmap shades it from light yellow for low ore density through orange for medium to dark red for high. The overlay is drawn on top of the JourneyMap map, and pressing O toggles it on and off. Scanning runs in the background on chunks that are already loaded, and results are stored per world so they persist between sessions.
The mod uses the c:ores tag to recognize ores, which lets it pick up vanilla ores as well as ores added by other mods that follow the tag. It requires JourneyMap, and the environment is client-side only: players install it on their client and servers do not need it. Files are published for NeoForge 1.21.1 under the GNU General Public License v3.0 or later, and the source code and issue tracker are public.
Key features
Ore density heatmap
Chunks are colored from light yellow to dark red according to how many ores they contain.
Background scanning
Loaded chunks are scanned automatically in the background as the player explores.
Persistent per-world cache
Ore data is saved for each world, so the map does not need to be rescanned after a restart.
Tag-based ore detection
The c:ores tag lets the mod track vanilla ores and modded ores that carry the tag.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Finding mining areas
A player exploring a new world can spot the orange and red chunks on the map to decide where to dig.
Who it’s for: Players who already use JourneyMap and want ore locations shown on the map. Server owners do not need to install the mod.
How it compares
JourneyLocator: Xaero Compat is client-side only and released under The Unlicense, which covers a different map integration. Create Ore Cycling is server-side only and not open source, so players join without installing it, but it does not draw a density overlay. Toggle Visualize is client-side only and open source under the MIT License, with files for 1.20.1 – 26.3 across Fabric, Forge and NeoForge.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| JourneyMap Ore Heatmap | NeoForge | 1.21.1 | Client-side only | 2026-01-08 |
| JourneyLocator: Xaero Compat | NeoForge | 1.21.1 | Client-side only | 2025-10-01 |
| Create Ore Cycling | NeoForge | 1.21.1 | Server-side only | 2026-09-19 |
| Toggle Visualize | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client-side only | 2026-09-17 |
Questions
Does JourneyMap Ore Heatmap need JourneyMap?
Does the server need JourneyMap Ore Heatmap?
Which versions does JourneyMap Ore Heatmap support?
Can the heatmap show ores from other mods?
In the catalog
JourneyMap Ore Heatmap is one of 36,990 Utility mods on ModsFinder, and one of 13,477 Utility mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from StephanMeijer
Similar mods
What the author says
Adds ore density heatmap overlays to JourneyMap. See at a glance where ores are concentrated across your world! Customize in config/journeymap_ore_heatmap-client.toml: - Overlay opacity - Update interval - Custom ore tracking (tags or specific blocks)
Official listing
- Modrinth page
- modrinth.com/mod/journeymap-heatmap
- Owner
- StephanMeijer
- Published
- 2026-01-07
- Updated on Modrinth
- 2026-01-08
- Facts verified
- 2026-10-15