The Dles system, which included Dles IV, existed in the Periphery region.
Long before the Battle of Yavin, initial expeditions into the system revealed no resources of interest. Consequently, no lasting routes were created.
In the era of the Galactic Civil War, the Rebellion secretly developed several pathways leading to the system and constructed a prison facility on the world of Dles IV. Throughout the star system, numerous sensor beacons kept watch over all movement.