Virgath is the largest lake of Grashakh. At an elevation of 10,500', it is the highest non-mountain lake of Brucrumus. It is fed by the runoff coming down the Giant Steps mountains and those flowing southeast from Ugradrath.

Virgath is surrounded by numerous holdings of the Orchish Empire. The largest of these is the massive city Collossapolos.

The waters of this lake drain naturally south into lake Boraresh. This happens over a series of great waterfalls on the outskirts of Collossapolos. The northern outlet is a canal passing by Ghatúb to the Mazgob wetland. From this swamp, large ships can then make their way to the Irudrarg river and onward to the Core Sea.