Rivière· 326 segments
Rio Mearim
Crosses 23 administrative regions : Arari, Bacabal, Barra do Corda, Bernardo do Mearim, Conceição do Lago-Açu +18
Total length
1 086km
Max discharge
614,2m³/s
Max Strahler
6
Segments matched
326
River geography23 admin regions · 0 communes
23 administrative regions crossed (GADM L2)
- Barra do CordaMaranhão · Brazil261.0 kmin this dpt
- GrajaúMaranhão · Brazil246.6 kmin this dpt
- Formosa da Serra NegraMaranhão · Brazil160.5 kmin this dpt
- ArariMaranhão · Brazil116.6 kmin this dpt
- BacabalMaranhão · Brazil72.1 kmin this dpt
- Jenipapo dos VieirasMaranhão · Brazil60.0 kmin this dpt
- EsperantinópolisMaranhão · Brazil59.9 kmin this dpt
- JoselândiaMaranhão · Brazil52.6 kmin this dpt
- PedreirasMaranhão · Brazil51.1 kmin this dpt
- São Luís Gonzaga do MaranhãoMaranhão · Brazil44.1 kmin this dpt
- Vitória do MearimMaranhão · Brazil38.3 kmin this dpt
- São Mateus do MaranhãoMaranhão · Brazil37.5 kmin this dpt
- São RobertoMaranhão · Brazil28.5 kmin this dpt
- Conceição do Lago-AçuMaranhão · Brazil27.5 kmin this dpt
- Trizidela do ValeMaranhão · Brazil26.4 kmin this dpt
- Poção de PedrasMaranhão · Brazil25.1 kmin this dpt
- Bernardo do MearimMaranhão · Brazil22.0 kmin this dpt
- São Raimundo do Doca BezerraMaranhão · Brazil13.6 kmin this dpt
- Matões do NorteMaranhão · Brazil4.0 kmin this dpt
- Lago VerdeMaranhão · Brazil1.0 kmin this dpt
- Lima CamposMaranhão · Brazil0.2 kmin this dpt
- São José dos BasíliosMaranhão · Brazil0.1 kmin this dpt
- Santo Antônio dos LopesMaranhão · Brazil0.0 kmin this dpt
5 intersecting protected areas
Environmental Protection Area
Wetland of International Importance (Ramsar Site)
Cana Brava/Guajajara
IUCN Not ReportedIndigenous Area
Bacurizinho
IUCN Not ReportedIndigenous Area
Bacurizinho
IUCN Not ReportedIndigenous Area
1 page = 1 named river (aggregation of 326 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
1 086km
Max discharge
614,2m³/s
Max Strahler
6
Segments matched
326
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.