Tongue River Reservoir

Ecosystem Overview

The Tongue River Reservoir ecosystem supports 25 documented wildlife species across 20 taxonomic genera. Located in Big Horn County, Montana, this area provides critical habitat with diverse natural communities. The location hosts 6 frequently observed species and 4 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Big Horn County nearby has 66% more documented species, Tongue River Reservoir offers unique wildlife observation opportunities. This location ranks #21 for species diversity among 100 Big Horn County County natural areas, placing it in the 79th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#21

Regional Rank

Out of 100 locations

Species Distribution

Very Common6 species

Common7 species

Occasional8 species

Rare4 species

Regional Context

Regional Ranking

#21 of 100 locations

79th percentile for diversity

vs. Big Horn County

-66% species diversity

Ecosystem Overview

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Biodiversity Highlights

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Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

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Most Common Species

Showing 20 most frequently observed species out of 25 total documented species.

Eriogonum pauciflorum

Branched Eriogonum

Very Common2.86 obs.

Dalea purpurea

Purple Dalea

Very Common1.85 obs.

Carex vulpinoidea

Fox Sedge

Very Common1 obs.

Echinacea angustifolia

Kansas Snakeroot

Very Common0.99 obs.

Ratibida columnifera

Mexican-Hat

Very Common0.99 obs.

Pediomelum argophyllum

Silver-Leaved Psorala

Common0.99 obs.

Cleomella serrulata

Common0.98 obs.

Pediomelum tenuiflorum

Common0.93 obs.

Pseudoroegneria spicata

Beardless Wheatgrass

Common0.92 obs.

Pediomelum esculentum

Indian Turnip

Common0.92 obs.

Eriogonum annuum

Annual Wild Buckwheat

Common0.62 obs.

Evolvulus nuttallianus

Occasional0.62 obs.

Spargaloma sexpunctata

Six-Spotted Gray

Occasional0.51 obs.

Chorispora tenella

Bluemustard

Occasional0.39 obs.

Thlaspi arvense

Fanweed

Occasional0.23 obs.

Poa bulbosa

Bulbous Poa

Occasional0.13 obs.

Dactylis glomerata

Cockspur

Occasional0.1 obs.

Allium textile

Prairie Onion

Rare0.1 obs.

Astragalus gilviflorus

Plains Milk-Vetch

Rare0.08 obs.

Asclepias viridiflora

Green Milkweed

Rare0.08 obs.

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Most Common Species

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Regional Comparison

Regional Ranking

Species Count

vs. Regional Average

Compared to 8 nearby locations in Big Horn County County, Montana

Nearby Natural Areas

Big Horn County

Importance: 0.80

73 species

-66% vs. current

Blm

Importance: 0.70

49 species

-49% vs. current

State Trust

Importance: 0.70

21 species

+19% vs. current

Mt Fwp

Importance: 0.70

19 species

+32% vs. current

Muddy District / Heóvonêheo'he'é-taneno

Importance: 0.70

18 species

+39% vs. current

Busby District / Vóhpoométanéno

Importance: 0.70

14 species

+79% vs. current

Hardin

Importance: 0.70

2 species

+1150% vs. current

Busby

Importance: 0.70

1 species

+2400% vs. current

About This Comparison

These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Big Horn County County.

Regional Comparison

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Regional Ranking

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Species Count

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vs. Regional Average

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Nearby Natural Areas

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About This Comparison

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Regional Comparison

Regional Ranking

Species Count

vs. Regional Average

Compared to 8 nearby locations in Big Horn County County, Montana

Nearby Natural Areas

Big Horn County

Importance: 0.80

73 species

-66% vs. current

Blm

Importance: 0.70

49 species

-49% vs. current

State Trust

Importance: 0.70

21 species

+19% vs. current

Mt Fwp

Importance: 0.70

19 species

+32% vs. current

Muddy District / Heóvonêheo'he'é-taneno

Importance: 0.70

18 species

+39% vs. current

Busby District / Vóhpoométanéno

Importance: 0.70

14 species

+79% vs. current

Hardin

Importance: 0.70

2 species

+1150% vs. current

Busby

Importance: 0.70

1 species

+2400% vs. current

About This Comparison

Most Common Species

Showing 20 most frequently observed species out of 25 total documented species.

Eriogonum pauciflorum

Branched Eriogonum

Very Common2.86 obs.

Dalea purpurea

Purple Dalea

Very Common1.85 obs.

Carex vulpinoidea

Fox Sedge

Very Common1 obs.

Echinacea angustifolia

Kansas Snakeroot

Very Common0.99 obs.

Ratibida columnifera

Mexican-Hat

Very Common0.99 obs.

Pediomelum argophyllum

Silver-Leaved Psorala

Common0.99 obs.

Cleomella serrulata

Common0.98 obs.

Pediomelum tenuiflorum

Common0.93 obs.

Pseudoroegneria spicata

Beardless Wheatgrass

Common0.92 obs.

Pediomelum esculentum

Indian Turnip

Common0.92 obs.

Eriogonum annuum

Annual Wild Buckwheat

Common0.62 obs.

Evolvulus nuttallianus

Occasional0.62 obs.

Spargaloma sexpunctata

Six-Spotted Gray

Occasional0.51 obs.

Chorispora tenella

Bluemustard

Occasional0.39 obs.

Thlaspi arvense

Fanweed

Occasional0.23 obs.

Poa bulbosa

Bulbous Poa

Occasional0.13 obs.

Dactylis glomerata

Cockspur

Occasional0.1 obs.

Allium textile

Prairie Onion

Rare0.1 obs.

Astragalus gilviflorus

Plains Milk-Vetch

Rare0.08 obs.

Asclepias viridiflora

Green Milkweed

Rare0.08 obs.

Want the Complete Field Guide?

Get all 25 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#21

Regional Rank

Out of 100 locations

Species Distribution

Very Common6 species

Common7 species

Occasional8 species

Rare4 species

Regional Context

Regional Ranking

#21 of 100 locations

79th percentile for diversity

vs. Big Horn County

-66% species diversity