This archive tracks four layers. A record present in 1 of them (IND) is silent in the rest, and says so.
The Horus HeresyM30–M31
[RECORD LOST]
No record for this location in The Horus Heresy.
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
The 41st Millenniumpre-Rift
[RECORD LOST]
No record for this location in The 41st Millennium.
Era Indomituspost-Rift
contested
Uprising, and one island that never fell
A rebellion that thought it was reforming the Imperium rather than betraying it. The Imperium took back everything except one island fortress, and the name that fortress earned is what the world is now remembered by.
Position
Map frame: 605.1, 939.8 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 452 units ≈ 48.1k light years, south of the galactic core.
Height above the disk plane: 11.6 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Malouri System
Books set here
1 title in the reading tracker touches this record, 1 of them as a primary location. Titles link out to the tracker.
Every fact in this record, and where it came from. Editorial derivations say so.
classhigh
wh40k.lexicanum.com/wiki/Malouri infobox Segmentum = Unknown; Class = War World; Affiliation = Unknown; §History — the Malouri Uprising, and 'the island fortress of Crannog Mons, which became known as Traitor Rock'
gposlow
inferred: the infobox reads Segmentum = Unknown outright, which is canon declining to place it rather than a gap in our reading. No segmentum is claimed; unsurveyed rim, no positional information