Bob Marshall
IUCN IbWilderness · 1940
4 306 km²
County · USA
Pondera
United States
BSkArid, steppe, cold(82 %)
Species observed
943
Observations
16 769
Area
4 248,2km²
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Pondera : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 17.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
29
Interactions affichées
71
Connectance
0.175
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
943 distinct species · 16 769 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
6,0°C
Annual rain
421mm
Warmest m°
26,2°C
Coldest m°
-9,3°C
Elevation: 1 233 m on average (min 948 m, max 2 265 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
6,0°C
Annual rain
421mm
Warmest month
26,2°C
Coldest month
-9,3°C
Mean alt.
1 233m
Min
948m
Max
2 265m
Std. dev.
269m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(82 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,1
Org. C
21,3g/kg
Clay
30,5%
Sand
29,6%
Silt
39,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,0
Org. C
30,9g/kg
Clay
28,3%
Sand
30,8%
Silt
40,9%
5–15 cm
pH H₂O
7,1
Org. C
20,2g/kg
Clay
30,2%
Sand
29,8%
Silt
40,0%
15–30 cm
pH H₂O
7,2
Org. C
12,9g/kg
Clay
33,0%
Sand
28,2%
Silt
38,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.3%
Crops35.6%
Built-up0.0%
Bare soil5.7%
Other (grassland, water…)50.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology17 basins · 18 lakes · 43 rivers
Hydrology metrics for this exact territory
Stream length here
597,8km
Lake surface here
28,94km²
Basins crossed
17
Max stream order
5
Max drainage
9 756km²
Discharge in basins
86,4m³/s
Mean precip.
370mm/an
Mean T°
5,2°C
Moisture idx
-0,57
Max snow
47%
Mean runoff
128mm/an
Mean elev. (basins)
1 239m
Watersheds crossing here
- Bassin de Pondera Couleesub-area1 736,5 km²overlap1162.65 km²27%
- Bassin de Birch Creeksub-area1 493,3 km²overlap1143.80 km²27%
- Bassin de P-6 Canalsub-area949,1 km²overlap746.45 km²18%
- Bassin de Badger Creeksub-area685,1 km²overlap390.04 km²9%
- Bassin de Marias Riversub-area286,8 km²overlap285.54 km²7%
- Bassin de Two Medicine Riversub-area200,1 km²overlap112.03 km²3%
- Bassin de Marias Riversub-area211 km²overlap92.73 km²2%
- Bassin de South Fork Two Medicine Riversub-area267,1 km²overlap74.72 km²2%
- Bassin de Teton Riversub-area1 340,2 km²overlap65.99 km²2%
8 more basinssorted by overlap
- Bassin de Muddy Creeksub-area1 053,8 km²overlap58.95 km²1%
- Bassin de Marias Riversub-area143 km²overlap51.76 km²1%
- Bassin de Marias Riversub-area509,6 km²overlap16.23 km²0%
- Bassin de Two Medicine Riversub-area15,1 km²overlap15.00 km²0%
- Bassin de Middle Fork Flathead Riversub-area2 934,2 km²overlap9.69 km²0%
- Bassin de Marias Riversub-area45,6 km²overlap8.74 km²0%
- Bassin de Cut Bank Creeksub-area121,4 km²overlap7.66 km²0%
- Bassin de Little Badger Creeksub-area100,4 km²overlap6.54 km²0%
Lakes (18, top by area)
- Lake Francesarea17,9 km²avg depth9.2 m
- Alkali Lakearea3,5 km²avg depth1.9 m
- Lake #03465area2,6 km²avg depth1.9 m
- Lac 998215area0,9 km²avg depth46.0 m
- Lac 995352area0,8 km²avg depth4.8 m
- Lac 995634area0,8 km²avg depth3.8 m
- Lac 993511area0,4 km²avg depth2.0 m
- Lac 999910area0,4 km²avg depth1.8 m
- Lac 996535area0,4 km²avg depth3.4 m
9 more lakes
- Lac 997021area0,3 km²avg depth3.1 m
- Lac 993455area0,2 km²avg depth1.9 m
- Lac 998508area0,2 km²avg depth2.3 m
- Lac 998560area0,2 km²avg depth1.5 m
- Lac 998496area0,2 km²avg depth1.6 m
- Lac 998366area0,1 km²avg depth3.5 m
- Lac 1000284area0,1 km²avg depth1.4 m
- Lac 1001078area0,1 km²avg depth1.6 m
- Lac 997252area0,1 km²avg depth2.0 m
Rivers / streams (43, ord ≥ 4)
- Birch Creekord 6len here103.92 km52%total200 km
- Pondera Couleeord 4len here100.68 km81%total125 km
- Two Medicine Riverord 5len here45.91 km28%total161 km
- Sheep Creekord 4len here35.81 km12%total296 km
- Blacktail Creekord 3len here34.29 km45%total76 km
- Dupuyer Creekord 3len here28.48 km87%total33 km
- Marias Riverord 5len here27.24 km7%total415 km
- Badger Creekord 4len here24.72 km10%total248 km
- North Fork Sheep Creekord 1len here17.99 km100%total18 km
- North Fork Whitetail Creekord 1len here16.24 km100%total16 km
- South Fork Whitetail Creekord 1len here13.21 km100%total13 km
- South Fork Two Medicine Riverord 2len here12.81 km34%total38 km
31 more river segmentssorted by Strahler order + length
- North Badger Creekord 2len here12.19 km100%total12 km
- Cartwright Coulee Ditchord 1len here8.39 km100%total8 km
- B Four Ditchord 1len here8.14 km100%total8 km
- C Canalord 1len here7.61 km100%total8 km
- B Canalord 1len here7.58 km100%total8 km
- North Fork Birch Creekord 2len here7.19 km100%total7 km
- South Badger Creekord 1len here7.00 km100%total7 km
- Lonesome Creekord 1len here6.50 km100%total6 km
- P-6 Canalord 1len here5.85 km100%total6 km
- Limestone Creekord 4len here5.82 km4%total132 km
- Muskrat Creekord 2len here5.48 km13%total44 km
- Lee Creekord 4len here5.42 km4%total147 km
- South Fork Blacktail Creekord 1len here5.17 km100%total5 km
- South Fork Birch Creekord 2len here5.13 km26%total20 km
- Scoffin Creekord 1len here4.56 km64%total7 km
- Two M Canalord 1len here3.73 km100%total4 km
- Maucki Couleeord 2len here3.64 km38%total9 km
- Sidney Creekord 3len here3.19 km20%total16 km
- Favot Couleeord 2len here2.87 km100%total3 km
- East Fork Woods Creekord 1len here2.44 km100%total2 km
- Small Creekord 1len here2.32 km100%total2 km
- Elbow Creekord 2len here2.29 km12%total18 km
- Benson Creekord 3len here2.14 km8%total25 km
- Kip Creekord 1len here1.95 km100%total2 km
- Lookout Creekord 7len here1.89 km3%total65 km
- Muddy Creekord 6len here1.76 km0%total1107 km
- Teton Riverord 4len here1.66 km0%total376 km
- Fish Creekord 5len here1.30 km0%total378 km
- Red Poacher Creekord 1len here1.16 km100%total1 km
- Blind Creekord 1len here1.16 km100%total1 km
- Whitetail Creekord 3len here0.95 km1%total112 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
4,2%
Pesticides
5,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas8
IUCN V · 4IUCN Ib · 2IUCN Not Assigned · 2
Great Bear
IUCN IbWilderness · 1978
1 161 km²
Rocky Mountain Front
IUCN Not AssignedConservation Area · 2014
931 km²
Rocky Mountain Front
IUCN VEasement · 1996
271 km²
Pondera County
IUCN VWaterfowl Production Area
149 km²
Rocky Mountain Front
IUCN Not AssignedConservation Area
18 km²
Complete list8 protected areas
- Bob MarshallWildernessIUCN Ib19404 306 km²
- Great BearWildernessIUCN Ib19781 161 km²
- Rocky Mountain FrontConservation AreaIUCN Not Assigned2014931 km²
- Rocky Mountain FrontEasementIUCN V1996271 km²
- Pondera CountyWaterfowl Production AreaIUCN V149 km²
- Rocky Mountain FrontConservation AreaIUCN Not Assigned18 km²
- Pondera CountyWaterfowl Production AreaIUCN V15 km²
- Teton CountyWaterfowl Production AreaIUCN V1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN