The Strom Durchschlag River is thought to be the oldest river on Darvasi. Its source is somewhere high up in the Dor'Mar Mountains though no one has been able to find the exact source. As it leaves the Dor'Mar Mountains, is enters the Strom Durchschlag Canyon and flows south. The river exits the canyon about 175 miles south where the canyon ends at the Paludis Swamp. It flows through the swamp to the southwest until it flows into the Larian Sea.