The Veil Scar is a 300 mile long cleft in the land. It falls some 6000 feet into the darkness below, no one has explored the bottom of the scar before and returned. The scar starts near the base of the Skyreach mountain range in the north, leaving a strip of land less than a mile wide between the scar and the cliffs of the mountain, called Harrower’s Pass. It extends far south through the Durahan desert and shallows out just outside the borders of Durahan. The Veil Scar is believed to be the result of the Wrymlord Tor Dak attempting to split the Skyreach Mountains to free his brethren, and failing. Legend has it Tor Dak cleaved pieces of the mountain away and threw them behind him. The pieces of the mountain cut deeply into the land creating the Scar. The other Gods intervened and stopped him. Indeed the area where the Scar end in the north is filled with sharp cliffs instead of gentle hills.
The Veil Scar is a dangerous places due to the weaken Veil between Moroven and the Immaterium. All sort of creatures cross through the Veil at the Scar to harass Moroven. Durahan has the nominal responsibility to defend the land from the Veil creature. They have forts and troops stationed periodically along the Scar, but it is a tough job, and there are never enough eyes watch and feet patrolling.