The Astris River is the river that runs through the Pardrayan steppes next to the Khamorth states of Khatrish and Thatagush. In fact, it divides what was once extreme western province of Videssos and was later ruled by the invading Kharmorth tribes and the rest of Pardraya. During the reign of Krispos, the Astris served as the boundary between Videssian-held Kubrat and the Halogai and Thatagush.