Nestos (river)

Nestos ( ), Mesta ( ), or formerly the Mesta Karasu in

Turkish Turkish may refer to: *a Turkic language spoken by the Turks * of or about Turkey ** Turkish language *** Turkish alphabet ** Turkish people, a Turkic ethnic group and nation *** Turkish citizen, a citizen of Turkey *** Turkish communities and mi ...

(Karasu meaning "black river"), is a river in

Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedon ...

and

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with ...

. It rises in the

Rila Mountains Rila ( bg, Рила, ) is the highest mountain range of Bulgaria, the Balkan Peninsula and Southeast Europe. It is situated in southwestern Bulgaria and forms part of the Rila–Rhodope Massif. The highest summit is Musala at an elevation of 2,925 ...

and flows into the

Aegean Sea The Aegean Sea ; tr, Ege Denizi (Greek language, Greek: Αιγαίο Πέλαγος: "Egéo Pélagos", Turkish language, Turkish: "Ege Denizi" or "Adalar Denizi") is an elongated embayment of the Mediterranean Sea between Europe and Asia. It ...

near the island of

Thasos Thasos or Thassos ( el, Θάσος, ''Thásos'') is a Greek island in the North Aegean Sea. It is the northernmost major Greek island, and 12th largest by area. The island has an area of and a population of about 13,000. It forms a separate re ...

. It plunges down towering canyons toward the Aegean Sea through mostly metamorphic formations. At the end, the main stream spreads over the coastal plain of

Chrysoupolis Chrysoupoli ( el, Χρυσούπολη, before 1925: Σαπαίοι - ''Sapaioi'' or Σαρή Σαμπάν - ''Sari Saban'') is a town and a former municipality in the Kavala (regional unit), Kavala regional unit, East Macedonia and Thrace, Greece ...

and expands as a

delta Delta commonly refers to: * Delta (letter) (Δ or δ), a letter of the Greek alphabet * River delta, at a river mouth * D (NATO phonetic alphabet: "Delta") * Delta Air Lines, US * Delta variant of SARS-CoV-2 that causes COVID-19 Delta may also re ...

ic system with

freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

lakes and ponds forming the Nestos delta. The length of the

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

is , of which flow through

Statistical Yearbook 2017

National Statistical Institute (Bulgaria) The National Statistical Institute or NSI ( bg, Национален статистически институт or НСИ) is the Bulgarian state agency responsible for the collection and dissemination of statistical data on the population, ec ...

, p. 17 and the rest in

. Its drainage area is , of which 66% in Bulgaria. It forms some gorges in

Rila Rila ( bg, Рила, ) is the highest mountain range of Bulgaria, the Balkans, Balkan Peninsula and Southeast Europe. It is situated in southwestern Bulgaria and forms part of the Rila–Rhodope Mountains, Rhodope Massif. The highest summit is Mus ...

and

Pirin , photo=Pirin-mountains-Bansko.jpg , photo_caption=Pirin scenery in winter , country= Bulgaria, , parent= , geology= granite, gneiss, marble, limestone , area_km2=2585 , range_coordinates = , length_km=80 , length_orientation= north-s ...

. The longest gorge between Pirin to the west and the

Rhodope Mountains The Rhodopes (; bg, Родопи, ; el, Ροδόπη, ''Rodopi''; tr, Rodoplar) are a mountain range in Southeastern Europe, and the largest by area in Bulgaria, with over 83% of its area in the southern part of the country and the remainder in ...

to the east is the 25-km long

Momina Klisura Momina may refer to: * Momina, Burkina Faso * Momina, Poland See also * Momino (disambiguation) {{geodis