| Kasplya | |
|---|---|
.png) | |
 | |
| Native name | Каспля (Russian) |
| Location | |
| Country | Russia,Belarus |
| Physical characteristics | |
| Source | |
| • coordinates | 54°59′N31°38′E / 54.983°N 31.633°E /54.983; 31.633 |
| Mouth | Daugava (Western Dvina) |
• coordinates | 55°24′31″N30°43′07″E / 55.4086°N 30.7187°E /55.4086; 30.7187 |
| Length | 136 km (85 mi)[1] |
| Basin size | 5,410 km2 (2,090 sq mi)[2] |
| Discharge | |
| • average | 36.9 m3/s (1,300 cu ft/s)[2] |
| Basin features | |
| Progression | Daugava→Baltic Sea |
TheKasplya (Belarusian andRussian:Каспля) is a river inSmolensky,Demidovsky, andRudnyansky Districts ofSmolensk Oblast ofRussia and inVitebsk Region of northernBelarus. It is a major left-banktributary of theDaugava. Of its total length of 136 kilometres (85 mi), the first 116 kilometres (72 mi) are in Russia, and the rest in Belarus.[1] It joins the Daugava in the urban-type settlement ofSurazh. The town ofDemidov is situated on the Kasplya.
The Kasplya originates fromLake Kasplya in Smolensky District. It flows north, crosses the border with Demidovsky District and turns northwest. It flows through Demidov, and next to theselo ofBoroda turns west, crosses Rudnyansky District and enters Belarus. There, it turns northwest again and enters the Daugava.
During theViking Age, the river was an important part of theDnieper trade route, as there was aportage from the Kasplya to theDnieper tributaries entering the Dnieper nearGnezdovo.[3]
