Rivière· 27 segments
Ольшанка
Crosses 9 administrative regions : Dubrowna, Dukhovshchinskiy rayon, Ivnyanskiy rayon, Krasninskiy rayon, Ovruts'kyi +4
rivière
Total length
498km
Max discharge
117,8m³/s
Max Strahler
5
Segments matched
27
River geography9 admin regions · 0 communes
9 administrative regions crossed (GADM L2)
- Smolenskiy rayonSmolensk · Russia32.7 kmin this dpt
- Pristenskiy rayonKursk · Russia22.4 kmin this dpt
- Rudnyanskiy rayonSmolensk · Russia19.6 kmin this dpt
- Ovruts'kyiZhytomyr · Ukraine14.3 kmin this dpt
- Krasninskiy rayonSmolensk · Russia11.4 kmin this dpt
- Ivnyanskiy rayonBelgorod · Russia4.8 kmin this dpt
- Dukhovshchinskiy rayonSmolensk · Russia4.6 kmin this dpt
- Prokhorovskiy rayonBelgorod · Russia1.5 kmin this dpt
- DubrownaVitebsk · Belarus1.1 kmin this dpt
1 page = 1 named river (aggregation of 27 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
0 distinct species · 0 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydrology (HydroRIVERS v10)
Total length
498km
Max discharge
117,8m³/s
Max Strahler
5
Segments matched
27
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.