Loudias

The Loudias (Greek: Λουδίας) or Lydias (Λυδίας), popularly called Mavroneri (Μαυρονέρι, "Blackwater", from its Ottoman Turkish name Kara Asmak قره آصماق) is a river in Central Macedonia that flows through the regional units of Pella and Thessaloniki draining into the Thermaic Gulf through the Axios Delta National Park. Its drainage basin is 1,251 km (483 sq mi).