HydroBASINS lev08 watershed · #7080041160
Bassin de North Branch Patapsco 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 5 administrative regions : Anne Arundel, Baltimore, Carroll, Frederick, Howard
Sub-basin area
951,9km²
Upstream area
951,9km²
Discharge
15,99m³/s
Mean elev.
166m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- Carroll507.3 km²53.2% of basin
- 211.5 km²22.2% of basin
- Howard165.7 km²17.4% of basin
- 68.1 km²7.1% of basin
- 0.0 km²0.0% of basin
30 intersecting protected areas
Patapsco Valley
IUCN VState Park
56.66 km² overlap
Soldiers Delight
IUCN VNatural Environment Area
5.36 km² overlap
Alpha Ridge Landf
IUCN Not AssignedConservation Easement
0.21 km² overlap
Autumn View
IUCN Not AssignedConservation Easement
0.21 km² overlap
Baltimore County, MD easem
IUCN Not AssignedConservation Easement
0.20 km² overlap
Cranberry
IUCN IIIPark
0.17 km² overlap
Estates at Liberty
IUCN Not AssignedReservoir
0.15 km² overlap
Pooledale Section 3
IUCN Not AssignedConservation Easement
0.14 km² overlap
Piney Run Forest Bank 2
IUCN Not AssignedForest
0.13 km² overlap
21 more protected areassorted by overlap area
Krimgold
IUCN Not AssignedRegional Park
0.12 km² overlap
Rockburn Branch
IUCN Not AssignedPark
0.12 km² overlap
Maryland Environmental Trust Easement #83
IUCN Not AssignedEasement
0.10 km² overlap
Mt. Hebron
IUCN Not AssignedConservation Easement
0.09 km² overlap
WBLLC Forest Bank
IUCN Not AssignedForest
0.08 km² overlap
Patapsco Valley Overlook, Section 1
IUCN Not AssignedConservation Easement
0.07 km² overlap
College Avenue Pump Station
IUCN Not AssignedConservation Easement
0.06 km² overlap
Woodsyde Estates, Section One
IUCN Not AssignedConservation Easement
0.05 km² overlap
Gerstell Academy
IUCN Not AssignedConservation Easement
0.05 km² overlap
Stoffle
IUCN Not AssignedPark
0.05 km² overlap
Autumn River
IUCN Not AssignedConservation Easement
0.04 km² overlap
Green Meadows
IUCN Not AssignedConservation Easement
0.04 km² overlap
Riverwalk at Patapsco
IUCN Not AssignedPark
0.04 km² overlap
Corridor 95 Business
IUCN Not AssignedPark
0.03 km² overlap
Oxford Square
IUCN Not AssignedConservation Easement
0.03 km² overlap
Rockburn
IUCN Not AssignedPark
0.03 km² overlap
Cody Property
IUCN Not AssignedConservation Easement
0.03 km² overlap
Grace-Lyn Manor
IUCN Not AssignedConservation Easement
0.03 km² overlap
Cranberry Station Elementary
IUCN Not AssignedSchool
0.03 km² overlap
Woods of Tiber Branch II
IUCN Not AssignedConservation Easement
0.03 km² overlap
Oklahoma Road Middle
IUCN Not AssignedSchool
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 847 distinct species · 1 834 474 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 North Branch Patapsco River : 28 espèces reliées par 78 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 10 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°
11,8°C
Annual rain
1 091mm
Moisture idx (CMI)
0,00
Runoff
526mm/an
PET
1 096mm
AET
838mm
Mean slope
2,9°
Water table
192cm
Forest
55%
Crops
22%
Urban
28%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)