Eberron: Shadow War
Breland is one of the five nations of central Khorvaire it lies in the southwest of the continent enjoying one of the largest areas of the nations and territories. Breland is a mix of open farmland, woodland and sprawling metropolis, the most famous of which is Sharn. The Lightning Rail originates out of Sharn and from there travels across Breland and out to the other nations of Khorvaire, while House Orien roadways branch out to more remote locations among the countryside.
Breland occupies a large swath of land nestled between Zilargo to the east and Droaam to the west while sharing its northern border with the Eldeen Reaches and Aundair, and even touches Darguun and The Mournland in its far eastern area. The Straits of Shargon stab into Breland with the Dagger River, while the Graywall Mountains in the west prevent monstrous invasions from Droaam. Other geographic boundaries are Lake Brey, Silver Lake, Lake Galifar and the Blackcap Mountains to the north, and the Howling Peaks and the King's Forest to the east.