Lowroad

Lowroad was a series of natural and carved tunnels that served as a trade route from the Citadel Felbarr of Delzoun, to the lands of Netheril via the port city of Ascore.

History
The underground passageway was completed in the year -3416 DR. During the Age of the Proud People, the Lowroad had numerous dwarven outposts, each of which were able to close off the subterranean passageways during emergencies.

When the Empire of Netheril fell in -339 DR, the dwarves of Ascore sealed off the eastward portion of the Lowroad, fearful of the destruction caused by the Netherese arcanists. All of the dwarven merchants and Netherese commoners were caught in this trapped off portion were killed, and many returned as undead spirits.