Loading AI tools
River in Kaliningrad Oblast, Russia From Wikipedia, the free encyclopedia
The Pregolya or Pregola (Russian: Преголя; German: Pregel; Lithuanian: Prieglius; Polish: Pregoła) is a river in the Russian Kaliningrad Oblast exclave.
| Pregolya | |
|---|---|
The Pregolya in Gvardeysk. | |
 | |
| Location | |
| Country | Russia |
| Physical characteristics | |
| Source | |
| • location | Instruch and Angrapa confluence |
| Mouth | |
• location | Vistula Lagoon, Baltic Sea |
• coordinates | 54.6827°N 20.3778°E |
| Basin size | 15,500 km2 (6,000 sq mi) |
| Discharge | |
| • average | 90 m3/s (3,200 cu ft/s) |
 | |
A possible ancient name by Ptolemy of the Pregolya River is Chronos (from Germanic *hrauna, "stony")[citation needed], although other theories identify Chronos as a much larger river, the Nemunas.[citation needed]
The oldest recorded names of the river are Prigora (1302), Pregor (1359), Pregoll, Pregel (1331), Pregill (1460). Georg Gerullis connected the name with Lithuanian prãgaras, pragorė̃ ("abyss") and the Lithuanian verb gérti ("drink"). Vytautas Mažiulis instead derived it from spragė́ti or sprógti ("burst") and the suffix -ara ("river").[1]
It starts as a confluence of the Instruch and the Angrapa and drains into the Baltic Sea through the Vistula Lagoon. Its length under the name of Pregolya is 123 km, 292 km including the Angrapa. The basin has an area of 15,500 km2. The average flow is 90 m3/s.
Euler's Seven Bridges of Königsberg problem was based on the bridges crossing the river in Königsberg (now Kaliningrad).
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
