Editing Neva (section)

===Basin, tributaries and distributaries===
The basin area of Neva is 5,000&nbsp;km<sup>2</sup>,<ref>{{cite web|title=Neva, river|url=http://www.encspb.ru/object/2803997867?lc=en|website=Saint Petersburg encyclopaedia|access-date=10 December 2018|archive-date=26 August 2017|archive-url=https://web.archive.org/web/20170826073737/http://www.encspb.ru/object/2803997867?lc=en|url-status=live}}</ref> including the pools of Lake Ladoga and Onega (281,000&nbsp;km<sup>2</sup>). The basin contains 26,300 lakes and has a complex hydrological network of more than 48,300 rivers, however only 26 flow directly into Neva. The main tributaries are [[Mga (river)|Mga]], [[Tosna]], [[Izhora]], [[Slavyanka (river)|Slavyanka]] and Murzinka on the left, and [[Okhta]] and [[Chyornaya Rechka (Saint Petersburg)|Chyornaya Rechka]] on the right side of Neva.<ref name=SPBe/>

The hydrological network had been altered by the development of Saint Petersburg through its entire history. When it was founded in 1703, the area was low and swampy and required construction of canals and ponds for drainage. The earth excavated during their construction was used to raise the city. At the end of the 19th century, the delta of Neva consisted of 48 rivers and canals and 101 islands. The most significant distributaries of the delta are listed in the table. Before construction of the [[Obvodny Canal]], the left tributary of that area was the Volkovka; its part at the confluence is now called Monastyrka. The [[Ladoga Canal]] starts at the root of Neva and connects it along the southern coast of Lake Ladoga with the [[Volkhov]].<ref name="Ist-geogr.atlas" />

Some canals of the delta were filled over time, so that only 42 islands remained by 1972, all within the city limits of St. Petersburg. The largest islands are [[Vasilyevsky Island|Vasilyevsky]] at {{convert|1050|ha|acre}}, [[Petrogradsky Island|Petrogradsky]] at {{convert|570|ha|acre}}, [[Krestovsky Island|Krestovsky]] at {{convert|420|ha|acre}}, and [[Dekabristov Island|Dekabristov]] at {{convert|410|ha|acre}}; others include [[Zayachy Island|Zayachy]], Yelagin and [[Kamenny Island]]s.<ref name = "Ist-geogr.atlas"/> At the source of the Neva, near Shlisselburg, there are the two small islands of Orekhovy and Fabrichny. Island Glavryba lies up the river, above the town of [[Otradnoye, Kirovsky District, Leningrad Oblast|Otradnoye]].

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{| Class = "wikitable"
|+ Main waterways of the Neva delta.<ref>{{cite book|title = Leningrad. Historical atlas|location = M.|publisher = Main Office of Geodesy and Cartography under the [[Council of Ministers (Soviet Union)|Council of Ministers of the USSR]]|year = 1981|page = 57|url = https://books.google.com/books?id=sk7LQgAACAAJ}}{{Dead link|date=February 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
! Name
! Region
! Length, km
|-
| Rowspan = "2"|[[Great Neva]]|| from the mouth of the [[Fontanka]] to the [[Blagoveshchensky Bridge]]|| 2.40
|-
| From the Blagoveshchensky Bridge to the [[Palace Bridge]]|| 1.22
|-
| [[Little Neva]]|||| 4.85
|-
| Ekateringofka|||| 3.60
|-
| [[Zhdanovka]]|||| 2.20
|-
| [[Smolenka (river)|Smolenka]]|||| 3.30
|-
| Rowspan = "3"|[[Great Nevka]]|| from the Neva to [[Little Nevka]]|| 3.70
|-
| from Little Nevka to Middle Nevka || 2.05
|-
| From Middle Nevka to [[Neva Bay]]|| 2.15
|-
| [[Middle Nevka]]|||| 2.60
|-
| [[Little Nevka]]|||| 4.90
|-
| [[Karpovka]]|||| 3.00
|-
| Krestovka|||| 0.74
|-
| [[Fontanka]]|||| 6.70
|-
| [[Moyka]]|||| 4.67
|-
| [[Griboyedov Canal]]|||| 5.00
|-
| Pryazhka|||| 1.32
|-
| Kryukov Canal|||| 1.15
|-
| [[Obvodny Canal]]|||| 8.08
|}