HydroBASINS lev08 watershed · #7080415020
Bassin de Lamar 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 : Park, Sweet Grass
Sub-basin area
1 738,3km²
Upstream area
1 738,5km²
Discharge
13,54m³/s
Mean elev.
2 548m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Park1205.6 km²69.2% of basin
- 513.6 km²29.5% of basin
- 22.9 km²1.3% of basin
6 intersecting protected areas
Yellowstone National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1267.70 km² overlap
Yellowstone
IUCN IINational Park
1267.13 km² overlap
Yellowstone
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1244.62 km² overlap
Recommended Wilderness
1202.97 km² overlap
Absaroka-Beartooth
IUCN IbWilderness
378.13 km² overlap
North Absaroka
IUCN IbWilderness
42.47 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 514 distinct species · 69 149 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Lamar River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 16.1%, 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°
-0,7°C
Annual rain
651mm
Moisture idx (CMI)
-0,09
Runoff
246mm/an
PET
729mm
AET
514mm
Mean slope
14,5°
Water table
560cm
Forest
89%
Crops
1%
Urban
0%
Protected
97%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)