Thunder Basin - Cheyenne River (Pca)
IUCN VEasement · 2001
20 km²
County · USA
Converse
United States
BSkArid, steppe, cold(72 %)
Species observed
1 485
Observations
50 597
Area
11 020,7km²
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 Converse : 21 espèces reliées par 77 interactions GloBI sur 4 types (connectance 19.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
29
Interactions affichées
77
Connectance
0.190
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 485 distinct species · 50 597 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
7,5°C
Annual rain
362mm
Warmest m°
29,9°C
Coldest m°
-8,4°C
Elevation: 1 652 m on average (min 1 281 m, max 2 725 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
7,5°C
Annual rain
362mm
Warmest month
29,9°C
Coldest month
-8,4°C
Mean alt.
1 652m
Min
1 281m
Max
2 725m
Std. dev.
260m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(72 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,2
Org. C
16,1g/kg
Clay
24,5%
Sand
45,7%
Silt
29,8%
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
6,9
Org. C
23,4g/kg
Clay
22,1%
Sand
47,6%
Silt
30,3%
5–15 cm
pH H₂O
7,2
Org. C
15,3g/kg
Clay
24,9%
Sand
45,5%
Silt
29,6%
15–30 cm
pH H₂O
7,4
Org. C
9,6g/kg
Clay
26,6%
Sand
44,0%
Silt
29,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest5.8%
Crops2.9%
Built-up0.0%
Bare soil5.9%
Other (grassland, water…)85.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology22 basins · 7 lakes · 18 rivers
Hydrology metrics for this exact territory
Stream length here
922,1km
Lake surface here
2,50km²
Basins crossed
22
Max stream order
6
Max drainage
41 529km²
Discharge in basins
196,3m³/s
Mean precip.
348mm/an
Mean T°
6,9°C
Moisture idx
-0,67
Max snow
33%
Mean runoff
50mm/an
Mean elev. (basins)
1 656m
Watersheds crossing here
- Bassin de North Platte Riversub-area2 794,1 km²overlap2794.78 km²25%
- Bassin de Dry Fork Cheyenne Riversub-area1 285,2 km²overlap1287.52 km²12%
- Bassin de North Platte Riversub-area1 173,6 km²overlap841.10 km²8%
- Basin #61330sub-area817,5 km²overlap818.91 km²7%
- Bassin de Sand Creeksub-area748,8 km²overlap750.20 km²7%
- Bassin de Antelope Creeksub-area1 031 km²overlap650.52 km²6%
- Bassin de la Bonte Creeksub-area757,8 km²overlap588.61 km²5%
- Basin #61260sub-area540,7 km²overlap540.49 km²5%
- Basin #60800sub-area638,9 km²overlap494.08 km²4%
13 more basinssorted by overlap
- Bassin de North Platte Riversub-area1 209,4 km²overlap489.58 km²4%
- Bassin de Deer Creeksub-area545 km²overlap409.63 km²4%
- Bassin de Antelope Creeksub-area876,3 km²overlap280.82 km²3%
- Basin #60930sub-area539,6 km²overlap237.84 km²2%
- Bassin de Horseshoe Creeksub-area557,4 km²overlap223.18 km²2%
- Bassin de Cheyenne Riversub-area599,7 km²overlap217.69 km²2%
- Bassin de Buck Creeksub-area996 km²overlap116.97 km²1%
- Bassin de Salt Creeksub-area2 096,6 km²overlap113.07 km²1%
- Bassin de Muddy Creeksub-area575,7 km²overlap70.67 km²1%
- Bassin de Little Medicine Bow Riversub-area2 520,2 km²overlap56.45 km²1%
- Basin #78810sub-area633,7 km²overlap23.14 km²0%
- Bassin de Powder Riversub-area729 km²overlap13.11 km²0%
- Bassin de North Platte Riversub-area1 774,1 km²overlap2.37 km²0%
Lakes (7, top by area)
Rivers / streams (18, ord ≥ 4)
- North Platte Riverord 6len here257.69 km14%total1796 km
- Dry Fork Cheyenne Riverord 4len here166.29 km100%total166 km
- Antelope Creekord 6len here145.22 km30%total485 km
- La Bonte Creekord 3len here95.06 km76%total125 km
- Deer Creekord 6len here53.07 km4%total1337 km
- Sand Creekord 5len here48.46 km3%total1636 km
- Cheyenne Riverord 8len here47.63 km3%total1436 km
- Horseshoe Creekord 3len here32.76 km31%total104 km
- Box Elder Creekord 5len here19.64 km5%total360 km
- Salt Creekord 6len here11.27 km1%total1617 km
- LaPrele Creekord 3len here9.94 km100%total10 km
- Trail Creekord 6len here8.48 km5%total176 km
6 more river segmentssorted by Strahler order + length
- Muddy Creekord 6len here7.97 km1%total1107 km
- Little Medicine Bow Riverord 5len here4.42 km4%total121 km
- North Horseshoe Creekord 1len here3.74 km100%total4 km
- Elder Creekord 2len here3.68 km30%total12 km
- South Horseshoe Creekord 1len here3.49 km83%total4 km
- Spring Creekord 5len here3.30 km0%total2668 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,3nW
Built-up
2,8%
Pesticides
1,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN V · 2IUCN III · 1
Thunder Basin - Cheyenne River (Pca) Fee
IUCN VPrivate Conservation Land · 2001
8 km²
Fort Fetterman
IUCN IIIFort Fetterman
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN