HydroBASINS lev08 watershed · #7080573050

Bassin de Castle Creek

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 1 administrative regions : Grand

Pfafstetter: 77280109

Sub-basin area

471,5km²

Upstream area

62 532,3km²

Discharge

262,77m³/s

Mean elev.

1 775m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Colorado River107 km²

▲ Receives from 2 basins

Bassin de Dolores River814 km²
Bassin de Colorado River9 km²

1 dept-equivalent regions (GADM L2)

Grand
Utah · United States
471.8 km²
100.0% of basin

10 intersecting protected areas

Arches
IUCN II
National Park
13.21 km² overlap
Colorado
IUCN V
River Corridor
6.69 km² overlap
Colorado
IUCN V
River Corridor
2.60 km² overlap
Castle Valley
IUCN Not Assigned
Conservation Easement
2.06 km² overlap
La Sal Mountains
IUCN V
Easement
0.73 km² overlap
Proudfoot Bend Ranch
IUCN V
Conservation Easement
0.66 km² overlap
Bachelor Basin
IUCN V
Easement
0.63 km² overlap
Negro Bill Canyon
IUCN Ib
Wilderness Study Area
0.44 km² overlap
Colorado River Cor
IUCN V
River Corridor
0.28 km² overlap

1 more protected areassorted by overlap area

Mill Creek Canyon
IUCN Ib
Wilderness Study Area
0.16 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 152 distinct species · 34 062 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Castle Creek : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 4 types (connectance 16.1%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.161

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

9,8°C

Annual rain

320mm

Moisture idx (CMI)

-0,72

Runoff

68mm/an

PET

1 208mm

AET

272mm

Mean slope

11,9°

Water table

925cm

Forest

34%

Crops

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)