Expansion Region

The Expansion Region, first known as the Expansion Rim, is located between the Inner Rim Territories and the Mid Rim in the galaxy.

History
It was explored during the Golden Age of the Galactic Federation and its resources were exploited early on by various corporations. By the time of the Galactic Empire, most of it was dry of resources and used as an agricultural region, as well as a buffer zone with the Mid Rim, which was mostly outside of Imperial control.

Astrography
Aside from the traditional region divisions, the Expansion Region is divided further based on the navigational elements such as the galactic coordinates of Coruscant (0, 0, 0) during the Old Republic era or major hyperlanes, such as the Perlemian Trade Route or the Corellian Run. From the northwest, moving clockwise, the Expansion Region consist of:
 * Northern Dependencies (a region north of Coruscant and the Perlemian Trade Route with the Negs as the western boundary)
 * The Borderlands or Trans-Hydian (a region "north" of the Perlemian Trade Route)
 * The Slice (a region between the Perlemian Trade Route and the Corellian Run)
 * Trailing Sectors (a region west of the Corellian Run, "trailing" the Slice)
 * Western Reaches (a region west of the Trailing Sectors beyond the Rimma Trade Route)