HydroBASINS lev08 watershed · #7080448410
Bassin de Boise River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Ada, Boise, Canyon, Elmore
Sub-basin area
770,5km²
Upstream area
7 628,9km²
Discharge
32,86m³/s
Mean elev.
1 023m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mores Creek1095 km²
- Bassin de Boise River102 km²
4 dept-equivalent regions (GADM L2)
- AdaIdaho · United States648.0 km²83.9% of basin
- BoiseIdaho · United States79.7 km²10.3% of basin
- CanyonIdaho · United States24.9 km²3.2% of basin
- ElmoreIdaho · United States19.3 km²2.5% of basin
16 intersecting protected areas
Boise River
IUCN VWildlife Management Area
95.16 km² overlap
Stack Rock
IUCN VReserve
4.65 km² overlap
Military
IUCN VReserve
2.97 km² overlap
Noble
IUCN VReserve
2.41 km² overlap
Polecat Gulch
IUCN VReserve
1.94 km² overlap
Barber
IUCN VPool
1.55 km² overlap
Hulls Gulch
IUCN VReserve
1.18 km² overlap
Hillside to Hollow
IUCN VReserve
1.05 km² overlap
Mesa
IUCN VReserve
0.66 km² overlap
7 more protected areassorted by overlap area
Camel's Back
IUCN VReserve
0.26 km² overlap
Castle Rock
IUCN VReserve
0.20 km² overlap
Hyatt Hidden Lakes
IUCN VReserve
0.17 km² overlap
Foothills East
IUCN VReserve
0.10 km² overlap
Private Conservation
0.08 km² overlap
Johnston Parcel
IUCN VNatural Area
0.04 km² overlap
Private Conservation
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 036 distinct species · 1 383 887 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Bassin de Boise River : 23 espèces reliées par 70 interactions GloBI sur 3 types (connectance 15.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
8,9°C
Annual rain
402mm
Moisture idx (CMI)
-0,63
Runoff
157mm/an
PET
1 114mm
AET
344mm
Mean slope
6,8°
Water table
635cm
Forest
17%
Crops
8%
Urban
19%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)