HydroBASINS lev08 watershed · #7080705460
Bassin de San Pedro 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 3 administrative regions : Graham, Pima, Pinal
Sub-basin area
1 653,5km²
Upstream area
9 426,7km²
Discharge
3,95m³/s
Mean elev.
1 149m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de San Pedro River536 km²
- Bassin de San Pedro River177 km²
3 dept-equivalent regions (GADM L2)
- 982.0 km²59.4% of basin
- 431.5 km²26.1% of basin
- Graham239.0 km²14.5% of basin
10 intersecting protected areas
Galiuro
IUCN IbWilderness
69.81 km² overlap
Habitat, NRDAR Settlement
5.37 km² overlap
Butterfly Peak
IUCN IaResearch Natural Area
4.28 km² overlap
Buehman Canyon
IUCN VLocal Conservation Area
4.24 km² overlap
Dudleyville
IUCN VPrivate Conservation Land
2.45 km² overlap
Redfield Canyon (North)
IUCN IbWilderness Area
0.56 km² overlap
Local Conservation Area
0.40 km² overlap
Redington Ballcourt
IUCN VLocal Conservation Area
0.10 km² overlap
Bingham Cienega
IUCN VPrivate Conservation Land
0.05 km² overlap
1 more protected areassorted by overlap area
Aravaipa Canyon
IUCN VPreserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 038 distinct species · 420 194 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 Bassin de San Pedro River : 26 espèces reliées par 58 interactions GloBI sur 4 types (connectance 9.7%, filtre Serrano α=0.2). 9 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°
17,6°C
Annual rain
421mm
Moisture idx (CMI)
-0,72
Runoff
14mm/an
PET
1 559mm
AET
355mm
Mean slope
7,3°
Water table
635cm
Forest
48%
Crops
1%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)