Duncan Canyon

Tahoe National Forest · California · 8,621 acres · RoadlessArea Rule (2001)
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Observed Species (220)

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

(1)
Navarretia intertexta
(1)
Theatops californiensis
(1)
Brachycybe rosea
American Bird's-foot-trefoil (1)
Acmispon americanus
American Bistort (4)
Bistorta bistortoides
American Black Bear (1)
Ursus americanus
American Robin (3)
Turdus migratorius
American Trailplant (3)
Adenocaulon bicolor
Anderson's Thistle (3)
Cirsium andersonii
Arrow-leaf Groundsel (1)
Senecio triangularis
Arrowleaf Balsamroot (1)
Balsamorhiza sagittata
Bear Valley Buckwheat (1)
Eriogonum ursinum
Beavertail Mariposa Lily (1)
Calochortus coeruleus
Big Brown Bat (1)
Eptesicus fuscus
Black Cottonwood (1)
Populus trichocarpa
Blunt Stonecrop (4)
Sedum obtusatum
Bowl Clover (1)
Trifolium cyathiferum
Bracken Fern (3)
Pteridium aquilinum
Brewer's Golden-aster (1)
Doellingeria breweri
Brewer's Monkeyflower (2)
Erythranthe breweri
Brewer's Mountain-heath (2)
Phyllodoce breweri
Bridges' Cliffbrake (4)
Pellaea bridgesii
Broad-stem Onion (1)
Allium platycaule
Brook Trout (1)
Salvelinus fontinalis
Brown Creeper (1)
Certhia americana
Bush Beardtongue (1)
Keckiella lemmonii
California Blushing Monkeyflower (9)
Erythranthe erubescens
California Ground Squirrel (1)
Otospermophilus beecheyi
California Red Fir (1)
Abies magnifica
California Rockrose (4)
Helianthella californica
California Skullcap (4)
Scutellaria californica
Californian False Hellebore (9)
Veratrum californicum
Canada Goose (1)
Branta canadensis
Capitate Sandwort (1)
Eremogone congesta
Cassin's Finch (3)
Haemorhous cassinii
Chipping Sparrow (1)
Spizella passerina
Columbian Monkshood (5)
Aconitum columbianum
Common Camassia (3)
Camassia quamash
Common Gartersnake (1)
Thamnophis sirtalis
Common Monkeyflower (1)
Erythranthe guttata
Common Mullein (3)
Verbascum thapsus
Common Sagebrush Lizard (4)
Sceloporus graciosus
Common St. John's-wort (1)
Hypericum perforatum
Common Wintergreen (5)
Chimaphila umbellata
Common Woolly-sunflower (2)
Eriophyllum lanatum
Common Yarrow (7)
Achillea millefolium
Coulter's Fleabane (1)
Erigeron coulteri
Cow-parsnip (4)
Heracleum maximum
Dark-eyed Junco (2)
Junco hyemalis
Deerbrush (1)
Ceanothus integerrimus
Dense Lace Fern (1)
Aspidotis densa
Double Honeysuckle (2)
Lonicera conjugialis
Dwarf False Ground-cherry (3)
Leucophysalis nana
Eastern Gray Squirrel (1)
Sciurus carolinensis
Ensatina (1)
Ensatina eschscholtzii
Felt-leaf Violet (2)
Viola tomentosa
Fireweed (3)
Chamaenerion angustifolium
Five-spot Baby-blue-eyes (1)
Nemophila maculata
Fox Sparrow (1)
Passerella iliaca
Fringed Pinesap (2)
Pleuricospora fimbriolata
Frosty paintbrush (1)
Castilleja pruinosa
Giant Pinedrops (7)
Pterospora andromedea
Giant Rattlesnake-plantain (1)
Goodyera oblongifolia
Giant Sequoia (1)
Sequoiadendron giganteum
Glandular Labrador-tea (1)
Rhododendron columbianum
Golden Triteleia (4)
Triteleia ixioides
Goldenrod Crab Spider (1)
Misumena vatia
Grassy Tarweed (1)
Madia gracilis
Gray's Lovage (3)
Ligusticum grayi
Greater Red Indian-paintbrush (1)
Castilleja miniata
Green-tailed Towhee (2)
Pipilo chlorurus
Greenleaf Manzanita (1)
Arctostaphylos patula
Hairy Owl's-clover (1)
Castilleja tenuis
Hermit Warbler (1)
Setophaga occidentalis
Hoary Buckwheat (1)
Eriogonum incanum
Hoary Pincushion (3)
Chaenactis douglasii
Hooker's Mandarin (1)
Prosartes hookeri
Huckleberry Oak (2)
Quercus vacciniifolia
Indian Paint Fungus (1)
Echinodontium tinctorium
Jeffrey's Pine (1)
Pinus jeffreyi
Johnson's Tufted Jumping Spider (1)
Phidippus johnsoni
Kellogg's bitterroot (2)
Lewisia kelloggii
Lace Lipfern (3)
Myriopteris gracillima
Lanceleaf Springbeauty (1)
Claytonia lanceolata
Large-flower Collomia (5)
Collomia grandiflora
Large-flower Wire-lettuce (1)
Stephanomeria lactucina
Leichtlin's Mariposa Lily (15)
Calochortus leichtlinii
Lemmon's Catchfly (3)
Silene lemmonii
Little Tarweed (1)
Madia exigua
Lobb's Buckwheat (1)
Eriogonum lobbii
Lobb's Fiddleleaf (4)
Nama lobbii
Lodgepole Pine (1)
Pinus contorta
Long-eared Myotis (1)
Myotis evotis
Long-spur Lupine (1)
Lupinus arbustus
Long-stalked Stitchwort (1)
Stellaria longipes
Mahala-mat Ceanothus (3)
Ceanothus prostratus
Marumleaf Buckwheat (1)
Eriogonum marifolium
Meadow Goat's-beard (1)
Tragopogon dubius
Meadow Timothy (1)
Phleum pratense
Milky Kelloggia (8)
Kelloggia galioides
Mountain Bluebird (1)
Sialia currucoides
Mountain Bluecurls (1)
Trichostema oblongum
Mountain Brookfoam (1)
Boykinia major
Mountain Chickadee (5)
Poecile gambeli
Mountain Hemlock (1)
Tsuga mertensiana
Mountain Maple (5)
Acer glabrum
Mountain Whitethorn (5)
Ceanothus cordulatus
Mountain Wildmint (5)
Monardella odoratissima
Mt. Hood Pussy-paws (1)
Calyptridium umbellatum
Mule Deer (1)
Odocoileus hemionus
Musk Monkeyflower (3)
Erythranthe moschata
Naked Buckwheat (1)
Eriogonum nudum
Narrowleaf Mule's-ears (1)
Wyethia angustifolia
Nettle-leaf Giant-hyssop (6)
Agastache urticifolia
Nevada Bitterroot (1)
Lewisia nevadensis
Newberry's Beardtongue (9)
Penstemon newberryi
Northwestern Pond Turtle (1)
Actinemys marmorataProposed Threatened
Olive-sided Flycatcher (1)
Contopus cooperi
One-seed Pussy-paws (8)
Calyptridium monospermum
Orange-crowned Warbler (1)
Leiothlypis celata
Orchard Grass (1)
Dactylis glomerata
Oregon Bitterroot (1)
Lewisia rediviva
Oregon Checker-mallow (1)
Sidalcea oregana
Osprey (1)
Pandion haliaetus
Pacific Bleedingheart (2)
Dicentra formosa
Pacific Dogwood (3)
Cornus nuttallii
Pacific Stonecrop (1)
Sedum spathulifolium
Pacific Treefrog (2)
Pseudacris regilla
Pileated Woodpecker (1)
Dryocopus pileatus
Pine Deervetch (1)
Acmispon decumbens
Pine Violet (1)
Viola purpurea
Pine Violet (5)
Viola lobata
Pine Violet (3)
Viola pinetorum
Pine Woods Horkelia (2)
Horkelia fusca
Pinewoods Lousewort (7)
Pedicularis semibarbata
Ponderosa Pine (1)
Pinus ponderosa
Primrose Monkeyflower (3)
Erythranthe primuloides
Purple Fawnlily (3)
Erythronium purpurascens
Purple Milkweed (2)
Asclepias cordifolia
Quaking Aspen (2)
Populus tremuloides
Red-breasted Sapsucker (1)
Sphyrapicus ruber
Red-osier Dogwood (4)
Cornus sericea
Rock Wren (1)
Salpinctes obsoletus
Rose Meadowsweet (13)
Spiraea splendens
Rubber Boa (4)
Charina bottae
Sand Violet (1)
Viola adunca
Scarlet Skyrocket (6)
Ipomopsis aggregata
Self-heal (4)
Prunella vulgaris
Sheep Sorrel (1)
Rumex acetosella
Sierra Chinquapin (1)
Chrysolepis sempervirens
Sierra Currant (1)
Ribes nevadense
Sierra Gartersnake (3)
Thamnophis couchii
Sierra Gooseberry (5)
Ribes roezlii
Sierra Jewelflower (3)
Streptanthus tortuosus
Sierra Mariposa Lily (5)
Calochortus minimus
Sierra Mountain-misery (2)
Chamaebatia foliolosa
Sierra Newt (9)
Taricha sierrae
Sierra Onion (2)
Allium campanulatum
Sierra Stickseed (2)
Hackelia nervosa
Signal Crayfish (1)
Pacifastacus leniusculus
Small Tiger Lily (9)
Lilium parvum
Small-flower Blue-eyed Mary (2)
Collinsia parviflora
Smooth White Violet (1)
Viola macloskeyi
Snowplant (15)
Sarcodes sanguinea
Solomon's-plume (5)
Maianthemum racemosum
Spotted Coralroot (8)
Corallorhiza maculata
Spotted Sandpiper (2)
Actitis macularius
Spreading Dogbane (4)
Apocynum androsaemifolium
Starflower Solomon's-plume (1)
Maianthemum stellatum
Stebbins Phacelia (1)
Phacelia stebbinsii
Stream Trefoil (4)
Hosackia oblongifolia
Stretch Spiders (1)
Tetragnatha
Subarctic Ladyfern (1)
Athyrium filix-femina
Sugar Pine (3)
Pinus lambertiana
Sulphur-flower Buckwheat (1)
Eriogonum umbellatum
Tall White Bog Orchid (6)
Platanthera dilatata
Terrestrial Gartersnake (1)
Thamnophis elegans
Thickleaf Bird's-foot-trefoil (4)
Hosackia crassifolia
Thimbleberry (3)
Rubus parviflorus
Three-tooth Oceanspray (1)
Horkelia tridentata
Tinker's-penny (1)
Hypericum anagalloides
Torrey's Monkeyflower (15)
Diplacus torreyi
Townsend's Solitaire (1)
Myadestes townsendi
Tuberous Black-snakeroot (1)
Sanicula tuberosa
Umbrella Plant (3)
Darmera peltata
Utah Serviceberry (1)
Amelanchier utahensis
Veiled Polypore (4)
Cryptoporus volvatus
Velvety Stickseed (4)
Hackelia velutina
Violet Draperia (2)
Draperia systyla
Washington Lily (4)
Lilium washingtonianum
Water-leaf Scorpionweed (2)
Phacelia hydrophylloides
Waxy Checker-mallow (7)
Sidalcea glaucescens
Western Columbine (14)
Aquilegia formosa
Western Fence Lizard (3)
Sceloporus occidentalis
Western Gray Beardtongue (2)
Penstemon laetus
Western Peony (1)
Paeonia brownii
Western Tanager (2)
Piranga ludoviciana
Western Toad (9)
Anaxyrus boreas
Western White Pine (1)
Pinus monticola
Western Wood-Pewee (3)
Contopus sordidulus
White Triteleia (4)
Triteleia hyacinthina
White-headed Woodpecker (1)
Leuconotopicus albolarvatus
White-veined Wintergreen (6)
Pyrola picta
Wolf Lichen (2)
Letharia vulpina
Woodland Strawberry (1)
Fragaria vesca
Woolly Mule's-ears (9)
Wyethia mollis
Yellow-rumped Warbler (1)
Setophaga coronata
Yellow-star Mariposa Lily (1)
Calochortus monophyllus
Yosemite Millipede (2)
Californiulus yosemitensis
a bracket fungus (1)
Trichaptum abietinum
a fungus (1)
Pluteus atromarginatus
a fungus (1)
Sedecula pulvinata
a fungus (1)
Caloscypha fulgens
a fungus (1)
Ganoderma oregonense
a fungus (1)
Laetiporus conifericola
a fungus (2)
Leratiomyces percevalii
a jumping spider (1)
Habronattus americanus
a terrestrial slug (1)
Ariolimax buttoni
poke knotweed (3)
Koenigia phytolaccifolia
Federally Listed Species (8)

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.

California Red-legged Frog
Rana draytoniiThreatened
Sierra Nevada Yellow-legged Frog
Rana sierraeEndangered
California Spotted Owl
Strix occidentalis occidentalis
Gray Wolf
Canis lupus
Monarch
Danaus plexippusProposed Threatened
North American Wolverine
Gulo gulo luscus
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Sierra Nevada Red Fox
Vulpes vulpes necator
Other Species of Concern (13)

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

American Dipper
Cinclus mexicanus
Bald Eagle
Haliaeetus leucocephalus
Black Swift
Cypseloides niger
Black-throated Gray Warbler
Setophaga nigrescens
California Gull
Larus californicus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Evening Grosbeak
Coccothraustes vespertinus
Flammulated Owl
Psiloscops flammeolus
Hermit Warbler
Setophaga occidentalis
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Wrentit
Chamaea fasciata
Migratory Birds of Conservation Concern (12)

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.

American Dipper
Cinclus mexicanus
Bald Eagle
Haliaeetus leucocephalus
Black Swift
Cypseloides niger
Black-throated Gray Warbler
Setophaga nigrescens
California Gull
Larus californicus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Evening Grosbeak
Coccothraustes vespertinus
Hermit Warbler
Setophaga occidentalis
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Wrentit
Chamaea fasciata
Vegetation (8)

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

California Red Fir Forest
Tree / Conifer · 1,407 ha
GNR40.3%
California Mixed Conifer Forest
Tree / Conifer · 1,302 ha
GNR37.3%
California Mountain Chaparral
Shrub / Shrubland · 408 ha
GNR11.7%
Sierra Nevada Lodgepole Pine Forest
Tree / Conifer · 119 ha
GNR3.4%
Sierra Nevada Cliff and Canyon
Sparse / Sparsely Vegetated · 68 ha
2.0%
GNR1.3%
California Ruderal Grassland and Meadow
Herb / Exotic Herbaceous · 39 ha
1.1%
California High Mountain Meadow
Herb / Grassland · 33 ha
GNR0.9%

Duncan Canyon

Duncan Canyon Roadless Area

Tahoe National Forest, California · 8,621 acres