The Solokiia (Ukrainian: Солокія, Polish: Sołokija) is a river in Poland and Ukraine and a tributary of the Bug. Its source is located north of Tomaszów Lubelski. In its upper reaches, the Solokiia runs mainly in a southeastern direction. Near the crossing of the Polish-Ukrainian border it turns to the east and after passing through Uhniv and Belz it flows in Chervonohrad as a left affluent into the Western Bug.
| Solokiia Sołokija | |
|---|---|
 Solokiia in Belz | |
| Location | |
| Country | Poland, Ukraine |
| Physical characteristics | |
| Source | |
| • location | North-Eastern slopes of Roztocze, Poland |
| Mouth | |
• location | Bug |
• coordinates | 50°22′36″N 24°14′30″E / 50.3767°N 24.2417°E |
| Length | 88 km (55 mi) |
| Basin size | 939 km2 (363 sq mi) |
| Basin features | |
| Progression | Bug→ Narew→ Vistula→ Baltic Sea |
After substantial coal deposits were discovered in its vicinity, part of the river basin was transferred from Poland to the USSR in the 1951 Polish–Soviet territorial exchange.[1]