Rivière· 104 segments
Pit River
Crosses 3 administrative regions : Lassen, Modoc, Shasta
Total length
331km
Max discharge
95,9m³/s
Max Strahler
5
Segments matched
104
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
8 intersecting protected areas
Reserve Program
Ash Creek
IUCN VWildlife Area
Pit River Canyon
IUCN IbWilderness Study Area
Lava
IUCN IbWilderness Study Area
Modoc
IUCN IVNational Wildlife Refuge
Reserve Program
Devils Rock-Hosselkus
IUCN IaResearch Natural Area
Fall River Mills
IUCN VEcological Reserve
1 page = 1 named river (aggregation of 104 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
629 distinct species · 15 364 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Pit River : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 4 types (connectance 15.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
331km
Max discharge
95,9m³/s
Max Strahler
5
Segments matched
104
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.