Ruisseau· 21 segments
Олешня
Crosses 11 administrative regions : Dyat'kovo, Dyat'kovskiy rayon, Kastsyukovichy, Korostens'kyi, Krasnogorskiy rayon +6
Total length
218km
Max discharge
2m³/s
Max Strahler
3
Segments matched
21
River geography11 admin regions · 0 communes
11 administrative regions crossed (GADM L2)
- Sums'kyiSumy · Ukraine34.1 kmin this dpt
- Krasnogorskiy rayonBryansk · Russia21.8 kmin this dpt
- Korostens'kyiZhytomyr · Ukraine19.1 kmin this dpt
- Okhtyrs'kyiSumy · Ukraine17.1 kmin this dpt
- Sudzhanskiy rayonKursk · Russia13.5 kmin this dpt
- Dyat'kovskiy rayonBryansk · Russia7.9 kmin this dpt
- Trostianets'kyiSumy · Ukraine7.9 kmin this dpt
- Sums'kaSumy · Ukraine2.5 kmin this dpt
- Lebedyns'kyiSumy · Ukraine0.0 kmin this dpt
- Dyat'kovoBryansk · Russia0.0 kmin this dpt
- KastsyukovichyMogilev · Belarus0.0 kmin this dpt
9 intersecting protected areas
Upper Psel river valley
IUCN Not ReportedEmerald Network
Slovechanskyi Kriazh
IUCN Not ReportedEmerald Network
Middle part of Vorskla river basin
IUCN Not ReportedEmerald Network
Drevlianskyi
IUCN Not ReportedZakaznyk
Hetmanskyi
IUCN Not ReportedNational nature park
Hetmanskyi National Nature Park
IUCN Not ReportedEmerald Network
Khotinskyi
IUCN Not ApplicablePark-monument of landscape art
Kyianytskyi
IUCN Not ApplicablePark-monument of landscape art
Kyianytskyi
IUCN Not ReportedZakaznyk
1 page = 1 named river (aggregation of 21 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 distinct species · 1 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
218km
Max discharge
2,0m³/s
Max Strahler
3
Segments matched
21
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.