HydroBASINS lev08 watershed · #7080728080
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 across 2 countries : Cananea, Cochise, Naco
Sub-basin area
2 134,1km²
Upstream area
3 502,9km²
Discharge
1,89m³/s
Mean elev.
1 450m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio San Pedro973 km²
- Bassin de Arroyo Alamo Gordo396 km²
3 dept-equivalent regions (GADM L2)
- 1614.8 km²75.7% of basin
- 495.8 km²23.3% of basin
- 21.7 km²1.0% of basin
15 intersecting protected areas
Ecosistema Ajos - Bavispe, zona de influencia Cuenca Río San Pedro
IUCN Not ReportedWetland of International Importance (Ramsar Site)
517.76 km² overlap
San Pedro Riparian
IUCN VNational Conservation Area
174.63 km² overlap
Miller Peak
IUCN IbWilderness
38.59 km² overlap
Coronado
IUCN IIINational Memorial
19.46 km² overlap
Upper San Pedro
IUCN VPrivate Conservation Land
14.07 km² overlap
San Pedro Ecosystem
IUCN VConservation Easement
12.98 km² overlap
Flying H Ranch
IUCN Not AssignedConservation Easement
7.54 km² overlap
Private Conservation Land
7.32 km² overlap
Ramsey Canyon
IUCN VPreserve
1.59 km² overlap
6 more protected areassorted by overlap area
Preserve
0.64 km² overlap
Preserve
0.64 km² overlap
Yarbrough
IUCN VRiparian Habitat
0.49 km² overlap
Preserve
0.49 km² overlap
Escondido Falls
IUCN VPrivate Conservation Land
0.18 km² overlap
Preserve
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 633 distinct species · 2 620 088 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 : 14 espèces reliées par 45 interactions GloBI sur 3 types (connectance 15.0%, filtre Serrano α=0.2). 11 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°
16,2°C
Annual rain
399mm
Moisture idx (CMI)
-0,74
Runoff
14mm/an
PET
1 527mm
AET
337mm
Mean slope
4,2°
Water table
817cm
Forest
41%
Crops
2%
Urban
2%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)