Callahan Flow

Modoc National Forest · California · 6,618 acres · RoadlessArea Rule (2001)
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Observed Species (189)

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

(1)
Californiulus dorsovittatus
(3)
Boechera sparsiflora
(1)
Erysiphe radulescui
(1)
Mecaphesa
American Black Bear (1)
Ursus americanus
American Pika (5)
Ochotona princeps
American Robin (2)
Turdus migratorius
American Sickle (2)
Astragalus curvicarpus
Anna's Hummingbird (1)
Calypte anna
Antelope Bitterbrush (16)
Purshia tridentata
Arrowleaf Balsamroot (2)
Balsamorhiza sagittata
Ash-throated Flycatcher (2)
Myiarchus cinerascens
Baker's Globemallow (1)
Iliamna bakeri
Bald Eagle (1)
Haliaeetus leucocephalusDL
Ball-head Standing-cypress (2)
Ipomopsis congesta
Basalt Milkvetch (1)
Astragalus filipes
Big Sagebrush (10)
Artemisia tridentata
Bitter Cherry (4)
Prunus emarginata
Black-tailed Jackrabbit (1)
Lepus californicus
Bloomer's Fleabane (1)
Erigeron bloomeri
Bluebunch Wheatgrass (2)
Pseudoroegneria spicata
Bottlebrush Squirrel-tail (3)
Elymus elymoides
Branching Scorpionweed (4)
Phacelia ramosissima
Brazilian Free-tailed Bat (1)
Tadarida brasiliensis
Broad-sheath Desert-parsley (2)
Lomatium vaginatum
Brown-eyed Wolf Lichen (6)
Letharia columbiana
Bulbous Bluegrass (1)
Poa bulbosa
Bulbous Woodland-star (3)
Lithophragma glabrum
Bushy-tailed Woodrat (1)
Neotoma cinerea
California Kangaroo Rat (2)
Dipodomys californicus
California Quail (1)
Callipepla californica
California Scrub Jay (8)
Aphelocoma californica
Canyon Wren (1)
Catherpes mexicanus
Cassin's Finch (1)
Haemorhous cassinii
Cheatgrass (3)
Bromus tectorum
Choke Cherry (2)
Prunus virginiana
Common Mullein (2)
Verbascum thapsus
Common Nighthawk (3)
Chordeiles minor
Common Poorwill (1)
Phalaenoptilus nuttallii
Common Sagebrush Lizard (9)
Sceloporus graciosus
Common Yarrow (9)
Achillea millefolium
Coyote (2)
Canis latrans
Coyote Tobacco (10)
Nicotiana attenuata
Curl-leaf Mountain-mahogany (16)
Cercocarpus ledifolius
Curly Bluegrass (1)
Poa secunda
Dark-eyed Junco (1)
Junco hyemalis
Desert Figwort (5)
Scrophularia desertorum
Desert Gooseberry (8)
Ribes velutinum
Desert-sweet (43)
Chamaebatiaria millefolium
Doublet (2)
Dimeresia howellii
Douglas' Campion (5)
Silene douglasii
Douglas' Wood Beauty (1)
Drymocallis glandulosa
Douglas's Ground Squirrel (6)
Otospermophilus douglasii
Dwarf False Ground-cherry (1)
Leucophysalis nana
Dwarf Hulsea (1)
Hulsea nana
Dwarf Purple Monkeyflower (27)
Diplacus nanus
Dwarf Skullcap (2)
Scutellaria nana
Dwarf Yellow Fleabane (1)
Erigeron chrysopsidis
Dyer's Woad (1)
Isatis tinctoria
Eastern Warbling-Vireo (1)
Vireo gilvus
Emery Rocktripe Lichen (1)
Umbilicaria phaea
Entireleaf Ragwort (1)
Senecio integerrimus
False Rock-loving Wood Beauty (1)
Drymocallis pseudorupestris
Foothill Deathcamas (5)
Toxicoscordion paniculatum
Fragile Fern (2)
Cystopteris fragilis
Giant Blazingstar (21)
Mentzelia laevicaulis
Golden Eagle (1)
Aquila chrysaetos
Golden Pholiota (1)
Pholiota aurivella
Gophersnake (3)
Pituophis catenifer
Granite Prickly-phlox (3)
Linanthus pungens
Gray Ball Sage (34)
Salvia dorrii
Gray Fox (1)
Urocyon cinereoargenteus
Gray Horsebrush (11)
Tetradymia canescens
Green-band Mariposa Lily (19)
Calochortus macrocarpus
Green-tailed Towhee (1)
Pipilo chlorurus
Greenleaf Manzanita (3)
Arctostaphylos patula
Hoary Pincushion (9)
Chaenactis douglasii
Hoary Tansy-aster (13)
Dieteria canescens
Hot-rock Beardtongue (14)
Penstemon deustus
Idaho Fescue (1)
Festuca idahoensis
Klamath Rockcress (1)
Boechera subpinnatifida
Large-flower Collomia (6)
Collomia grandiflora
Large-fruit Desert-parsley (1)
Lomatium macrocarpum
Lark Sparrow (2)
Chondestes grammacus
Lewis's Woodpecker (1)
Melanerpes lewis
Linearleaf Fleabane (1)
Erigeron linearis
Linearleaf Phacelia (30)
Phacelia linearis
Longleaf Hawk's-beard (2)
Crepis acuminata
Lowly Beardtongue (4)
Penstemon humilis
Mahala-mat Ceanothus (1)
Ceanothus prostratus
Medusa-head (1)
Taeniatherum caput-medusae
Mottled Milkvetch (1)
Astragalus lentiginosus
Mountain Bluebird (4)
Sialia currucoides
Mountain Cottontail (3)
Sylvilagus nuttallii
Mountain Quail (1)
Oreortyx pictus
Mountain Star-lily (2)
Leucocrinum montanum
Mountain Wildmint (9)
Monardella odoratissima
Mourning Dove (2)
Zenaida macroura
Mt. Lassen Clarkia (2)
Clarkia lassenensis
Mule Deer (8)
Odocoileus hemionus
Naked Buckwheat (10)
Eriogonum nudum
Naked-stem Desert-parsley (1)
Lomatium nudicaule
Narrowleaf Milkweed (8)
Asclepias fascicularis
Nevada Desert-parsley (1)
Lomatium nevadense
Northern Flicker (1)
Colaptes auratus
Northern Mockingbird (1)
Mimus polyglottos
Northern Scorpion (2)
Paruroctonus boreus
Oak Titmouse (1)
Baeolophus inornatus
One-seed Pussy-paws (1)
Calyptridium monospermum
Orange Rock-posy Lichen (2)
Rhizoplaca chrysoleuca
Oregon Bitterroot (1)
Lewisia rediviva
Panicled Willowherb (1)
Epilobium brachycarpum
Parrot's-head Indian-paintbrush (2)
Castilleja pilosa
Peregrine Thistle (2)
Cirsium cymosum
Pin Clover (2)
Erodium cicutarium
Pine Violet (5)
Viola purpurea
Pinewoods Pussytoes (1)
Antennaria geyeri
Pinnate Tansy-mustard (1)
Descurainia pinnata
Pinyon Jay (1)
Gymnorhinus cyanocephalusUR
Poker Alumroot (2)
Heuchera cylindrica
Prairie Flax (2)
Linum lewisii
Purple Green-gentian (7)
Frasera albicaulis
Pursh's Milkvetch (1)
Astragalus purshii
Red Larkspur (1)
Delphinium nudicaule
Red-breasted Sapsucker (1)
Sphyrapicus ruber
Red-necked Phalarope (1)
Phalaropus lobatus
Red-stem Springbeauty (5)
Claytonia rubra
Red-tailed Hawk (7)
Buteo jamaicensis
Rock Pigeon (1)
Columba livia
Rock Wren (8)
Salpinctes obsoletus
Rubber Rabbitbrush (8)
Ericameria nauseosa
Sacramento Cycladenia (20)
Cycladenia humilis
Sagebrush Buttercup (6)
Ranunculus glaberrimus
Say's Phoebe (1)
Sayornis saya
Sierra Gooseberry (2)
Ribes roezlii
Silvery Ragwort (1)
Packera cana
Slender Buckwheat (2)
Eriogonum microtheca
Slender Hareleaf (1)
Lagophylla ramosissima
Small-flower Blue-eyed Mary (1)
Collinsia parviflora
Small-head Tarweed (5)
Hemizonella minima
Small-leaf Agastache (3)
Agastache parvifolia
Spotted Towhee (1)
Pipilo maculatus
Spreading Phlox (2)
Phlox diffusa
Spring Draba (2)
Draba verna
Spruce Gymnophilus (1)
Gymnopilus sapineus
Sticky-leaf Rabbitbrush (2)
Chrysothamnus viscidiflorus
Striped Whipsnake (2)
Masticophis taeniatus
Suksdorf's Monkeyflower (6)
Erythranthe suksdorfii
Sulphur-flower Buckwheat (21)
Eriogonum umbellatum
Sweetclover (3)
Melilotus officinalis
Tall Tumble-mustard (4)
Sisymbrium altissimum
Threadleaf Fleabane (12)
Erigeron filifolius
Tobacco Ceanothus (2)
Ceanothus velutinus
Tongue Clarkia (2)
Clarkia rhomboidea
Townsend's Big-eared Bat (3)
Corynorhinus townsendii
Townsend's Solitaire (2)
Myadestes townsendi
Turkey Vulture (5)
Cathartes aura
Two-form Pussytoes (2)
Antennaria dimorpha
Veiled Polypore (3)
Cryptoporus volvatus
Violet-green Swallow (4)
Tachycineta thalassina
Virgate Scorpionweed (2)
Phacelia heterophylla
Volcanic Daisy (1)
Erigeron elegantulus
Wavyleaf Indian-paintbrush (3)
Castilleja applegatei
Wax Currant (15)
Ribes cereum
Weevil False Dandelion (1)
Nothocalais troximoides
Western Bluebird (1)
Sialia mexicana
Western Fence Lizard (19)
Sceloporus occidentalis
Western Joepye-weed (3)
Ageratina occidentalis
Western Juniper (36)
Juniperus occidentalis
Western Kingbird (1)
Tyrannus verticalis
Western Meadowlark (1)
Sturnella neglecta
Western Rattlesnake (5)
Crotalus oreganus
Western Screech-Owl (1)
Megascops kennicottii
Western Skink (1)
Plestiodon skiltonianus
White Fir (1)
Abies concolor
White Plectritis (1)
Plectritis macrocera
White-crowned Sparrow (1)
Zonotrichia leucophrys
Whitemarked Cobweb Weaver (1)
Steatoda albomaculata
Wicker-stem Buckwheat (7)
Eriogonum vimineum
Wolf Lichen (3)
Letharia vulpina
Wyoming Indian-paintbrush (22)
Castilleja linariifolia
Yellow Missionbells (1)
Fritillaria pudica
Yellow-bellied Marmot (1)
Marmota flaviventris
a cave obligate millipede (3)
Plumatyla humerosa
a fungus (1)
Deconica montana
a jumping spider (2)
Phidippus octopunctatus
a rocktripe lichen (2)
Umbilicaria nodulospora
dense mistletoe (4)
Phoradendron densum
maroon-spotted woollystar (1)
Eriastrum signatum
Federally Listed Species (12)

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.

Conservancy Fairy Shrimp
Branchinecta conservatioEndangered
Lost River Sucker
Deltistes luxatusEndangered
Northern Spotted Owl
Strix occidentalis caurinaThreatened
Shortnose Sucker
Chasmistes brevirostrisEndangered
Vernal Pool Fairy Shrimp
Branchinecta lynchiThreatened
Vernal Pool Tadpole Shrimp
Lepidurus packardiEndangered
California Condor
Gymnogyps californianusE, XN
Gray Wolf
Canis lupus
Monarch
Danaus plexippusProposed Threatened
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Yellow-billed Cuckoo
Coccyzus americanus
Other Species of Concern (11)

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

Bald Eagle
Haliaeetus leucocephalus
California Gull
Larus californicus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Evening Grosbeak
Coccothraustes vespertinus
Golden Eagle
Aquila chrysaetos
Lewis's Woodpecker
Melanerpes lewis
Northern Harrier
Circus hudsonius
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Rufous Hummingbird
Selasphorus rufus
Migratory Birds of Conservation Concern (10)

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
California Gull
Larus californicus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Evening Grosbeak
Coccothraustes vespertinus
Golden Eagle
Aquila chrysaetos
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Rufous Hummingbird
Selasphorus rufus
Vegetation (7)

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

Great Basin Big Sagebrush Shrubland
Shrub / Shrubland · 1,287 ha
G348.0%
North Pacific Active Volcanic Rock and Cinder Land
Sparse / Sparsely Vegetated · 453 ha
16.9%
Columbia Plateau Steppe and Grassland
Herb / Grassland · 369 ha
G213.8%
Inter-Mountain Basins Cliff and Canyon
Sparse / Sparsely Vegetated · 178 ha
6.7%
4.3%
Columbia Plateau Low Sagebrush Steppe
Shrub / Shrubland · 99 ha
GNR3.7%
Pacific Northwest Mountain Cliff and Talus
Sparse / Sparsely Vegetated · 94 ha
GNR3.5%

Callahan Flow

Callahan Flow Roadless Area

Modoc National Forest, California · 6,618 acres