Illinois Creek

Medicine Bow-Routt National Forest · Wyoming · 6,711 acres · RoadlessArea Rule (2001)
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Observed Species (114)

Species with confirmed research-grade observation records from iNaturalist community science data.

(1)
Anticlea elegans
(1)
Campanula petiolata
Alfalfa (1)
Medicago sativa
Alpine Milkvetch (2)
Astragalus alpinus
American Badger (1)
Taxidea taxus
American Dragonhead (1)
Dracocephalum parviflorum
American Mink (1)
Neogale vison
American Mistletoe (1)
Arceuthobium americanum
American Pasqueflower (2)
Pulsatilla nuttalliana
American Speedwell (1)
Veronica americana
Arctic Sweet-colt's-foot (1)
Petasites frigidus
Aspen Roughstem (1)
Leccinum insigne
Beaked Sedge (1)
Carex utriculata
Bicrenate Cinquefoil (1)
Potentilla bicrenata
Bigelow's Groundsel (3)
Senecio bigelovii
Black Medic (1)
Medicago lupulina
Black-billed Magpie (1)
Pica hudsonia
Bulbous Woodland-star (1)
Lithophragma glabrum
Bull Elephant's-head (4)
Pedicularis groenlandica
Butter-and-eggs (1)
Linaria vulgaris
Californian False Hellebore (1)
Veratrum californicum
Columbian Monkshood (2)
Aconitum columbianum
Common Merganser (1)
Mergus merganser
Common Yarrow (1)
Achillea millefolium
Creeping Oregon-grape (1)
Berberis repens
Drummond's Thistle (1)
Cirsium scariosum
Early Cinquefoil (2)
Potentilla concinna
Fairy Slipper (2)
Calypso bulbosa
Felwort (1)
Swertia perennis
Fireweed (2)
Chamaenerion angustifolium
Four-line Honeysuckle (2)
Lonicera involucrata
Fringed Grass-of-Parnassus (1)
Parnassia fimbriata
Fringed Thistle (1)
Cirsium centaureae
Geyer's Sedge (1)
Carex geyeri
Giant Pinedrops (3)
Pterospora andromedea
Golden-Hardhack (2)
Dasiphora fruticosa
Green-flower Wintergreen (1)
Pyrola chlorantha
Ground Juniper (1)
Juniperus communis
Grouseberry (1)
Vaccinium scoparium
Gunnison's Mariposa Lily (1)
Calochortus gunnisonii
Hairy Valerian (1)
Valeriana edulis
Heartleaf Arnica (1)
Arnica cordifolia
Heartleaf Buttercup (2)
Ranunculus cardiophyllus
Hermit Thrush (1)
Catharus guttatus
Idaho Fescue (1)
Festuca idahoensis
Labrador Indian-paintbrush (1)
Castilleja septentrionalis
Lanceleaf Stonecrop (4)
Sedum lanceolatum
Largeleaf Avens (1)
Geum macrophyllum
Lodgepole Pine (1)
Pinus contorta
Many-flowered Phlox (2)
Phlox multiflora
Meadow Pussytoes (1)
Antennaria corymbosa
Meadow Timothy (1)
Phleum pratense
Moose (2)
Alces alces
Mule Deer (7)
Odocoileus hemionus
Musk Thistle (2)
Carduus nutans
Muskroot (1)
Adoxa moschatellina
Nagoonberry (1)
Rubus arcticus
Narrowleaf Collomia (1)
Collomia linearis
Northern Gentian (2)
Gentianella amarella
Northern House Wren (1)
Troglodytes aedon
Northern Meadow Sedge (1)
Carex praticola
Norwegian Cinquefoil (1)
Potentilla norvegica
Orange Agoseris (3)
Agoseris aurantiaca
Oregon Bitterroot (1)
Lewisia rediviva
Parry's Lousewort (1)
Pedicularis parryi
Parry's Milkvetch (1)
Astragalus parryi
Parry's Northern Harebell (1)
Campanula parryi
Pearly Everlasting (2)
Anaphalis margaritacea
Pink Wintergreen (1)
Pyrola asarifolia
Prairie Junegrass (1)
Koeleria macrantha
Prairie Lupine (1)
Lupinus lepidus
Prairie-smoke (2)
Geum triflorum
Pronghorn (1)
Antilocapra americana
Purple Avens (3)
Geum rivale
Purple Oat (1)
Schizachne purpurascens
Red-pod Stonecrop (1)
Rhodiola rhodantha
Red-tailed Hawk (1)
Buteo jamaicensis
Richardson's Geranium (2)
Geranium richardsonii
Rocky Mountain Beardtongue (1)
Penstemon cyathophorus
Rocky Mountain Beardtongue (1)
Penstemon strictus
Rocky Mountains Ponderosa Pine (1)
Pinus scopulorum
Rosy Pussytoes (2)
Antennaria rosea
Sand Violet (1)
Viola adunca
Sandhill Crane (1)
Antigone canadensis
Saskatoon (1)
Amelanchier alnifolia
Scarlet Skyrocket (6)
Ipomopsis aggregata
Short-stem Onion (1)
Allium brevistylum
Silky Scorpionweed (1)
Phacelia sericea
Simpson's Hedgehog Cactus (1)
Pediocactus simpsonii
Slender Rock-jasmine (1)
Androsace filiformis
Small Northern Bog Orchid (1)
Platanthera obtusata
Small-flower Beardtongue (1)
Penstemon procerus
Small-flower Valerian (2)
Valeriana occidentalis
Spotted Sandpiper (1)
Actitis macularius
Squashberry (1)
Viburnum edule
Sticky Gilia (1)
Aliciella pinnatifida
Stiff Clubmoss (2)
Spinulum annotinum
Streamside Bluebells (1)
Mertensia ciliata
Subalpine Fir (1)
Abies lasiocarpa
Sulphur-flower Buckwheat (4)
Eriogonum umbellatum
Tall White Bog Orchid (2)
Platanthera dilatata
Thick-head Sedge (1)
Carex pachystachya
Thread Rush (1)
Juncus filiformis
Twinflower (1)
Linnaea borealis
Upland Beardtongue (1)
Penstemon saxosorum
Virginia Strawberry (1)
Fragaria virginiana
Viviparous Knotweed (2)
Bistorta vivipara
Wapiti (1)
Cervus canadensis
Western St. John's-wort (1)
Hypericum scouleri
White Checker-mallow (2)
Sidalcea candida
Wilson's Warbler (2)
Cardellina pusilla
Wood Frog (3)
Lithobates sylvaticus
Yellow Locoweed (1)
Oxytropis campestris
Yellow-bellied Marmot (1)
Marmota flaviventris
Federally Listed Species (7)

Species identified by the U.S. Fish and Wildlife Service as potentially occurring within this area based on range and habitat data. These designations do not indicate confirmed presence — they identify habitat where agency actions may require consultation under the Endangered Species Act.

Pallid Sturgeon
Scaphirhynchus albusEndangered
Western Prairie White-fringed Orchid
Platanthera praeclaraThreatened
Canada Lynx
Lynx canadensis
Monarch
Danaus plexippusProposed Threatened
Piping Plover
Charadrius melodusE, T
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Whooping Crane
Grus americanaE, XN
Other Species of Concern (4)

Species identified by the U.S. Fish and Wildlife Service as potentially occurring based on range and habitat data.

Bald Eagle
Haliaeetus leucocephalus
Broad-tailed Hummingbird
Selasphorus platycercus
California Gull
Larus californicus
Golden Eagle
Aquila chrysaetos
Migratory Birds of Conservation Concern (4)

Birds of conservation concern identified by the U.S. Fish and Wildlife Service as potentially occurring based on range data. These species may warrant additional consideration under the Migratory Bird Treaty Act.

Bald Eagle
Haliaeetus leucocephalus
Broad-tailed Hummingbird
Selasphorus platycercus
California Gull
Larus californicus
Golden Eagle
Aquila chrysaetos
Vegetation (11)

Composition from LANDFIRE 2024 EVT spatial analysis. Ecosystems classified per NatureServe Terrestrial Ecological Systems.

Rocky Mountain Lodgepole Pine Forest
Tree / Conifer · 1,040 ha
GNR38.3%
Intermountain Mountain Sagebrush Steppe
Shrub / Shrubland · 483 ha
GNR17.8%
Rocky Mountain Subalpine Meadow
Herb / Grassland · 398 ha
GNR14.7%
Northern Rockies Subalpine Grassland
Herb / Grassland · 333 ha
GNR12.3%
Rocky Mountain Foothill Shrubland
Shrub / Shrubland · 96 ha
G33.5%
GNR2.0%
Rocky Mountain Aspen Forest
Tree / Hardwood · 40 ha
GNR1.5%
GNR1.4%
G30.4%
Intermountain Semi-Desert Grassland
Herb / Grassland · 5 ha
G20.2%

Illinois Creek

Illinois Creek Roadless Area

Medicine Bow-Routt National Forest, Wyoming · 6,711 acres