HydroBASINS lev08 watershed · #7080576130
Bassin de Pack 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 2 administrative regions : Grand, San Juan
Sub-basin area
423,1km²
Upstream area
63 961km²
Discharge
264,24m³/s
Mean elev.
2 013m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Courthouse Wash422 km²
- Bassin de Colorado River107 km²
2 dept-equivalent regions (GADM L2)
- GrandUtah · United States242.9 km²57.4% of basin
- San JuanUtah · United States180.5 km²42.6% of basin
10 intersecting protected areas
Mill Creek Canyon
IUCN IbWilderness Study Area
41.48 km² overlap
Behind The Rocks
IUCN IbWilderness Study Area
15.71 km² overlap
Arches
IUCN IINational Park
6.00 km² overlap
Mount Peale
IUCN IaResearch Natural Area
4.77 km² overlap
Mill Creek Gorge
IUCN IaResearch Natural Area
2.76 km² overlap
Moab
IUCN VWetlands
2.03 km² overlap
Colorado River Cor
IUCN VRiver Corridor
1.45 km² overlap
Matheson Wetlands
IUCN VState Wildlife Area
1.18 km² overlap
Colorado
IUCN VRiver Corridor
0.05 km² overlap
1 more protected areassorted by overlap area
Negro Bill Canyon
IUCN IbWilderness Study Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 898 distinct species · 82 807 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 Pack Creek : 22 espèces reliées par 74 interactions GloBI sur 4 types (connectance 15.9%, 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°
8,6°C
Annual rain
371mm
Moisture idx (CMI)
-0,64
Runoff
55mm/an
PET
1 142mm
AET
312mm
Mean slope
11,4°
Water table
886cm
Forest
34%
Crops
3%
Urban
2%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)