Keep Mistrash is a fortified castle, positioned low on the western slopes of the Mithral Mountains in the Santharian province of Manthria. It is the seat of the Markgravens of the Mithral Marches and houses nearly one hundred people in the winter months. The Keep itself is an imposing ten stories high at its tallest tower, and from a distance looks as if it is carved out of the rock of the mountain.