Input (grade 13): It rises in the town of Novomoskovsk 60 kilometres southeast from Tula, southeast of Moscow, and flows for a distance of about 1,950 kilometres (1,220 mi) to the Sea of Azov.
Output (grade 11): It rises in the town of Novomoskovsk 60 km southeast from Tula, southeast of Moscow, and flows for a distance of about 1,950 km (1,220 miles) to the Sea of Azov.