Lavas

Modoc National Forest · California · 25,864 acres · RoadlessArea Rule (2001)
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Observed Species (263)

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

(1)
Marchena minuta
(1)
Californiulus dorsovittatus
(2)
Boechera sparsiflora
American Pika (2)
Ochotona princeps
American Robin (7)
Turdus migratorius
American Sickle (1)
Astragalus curvicarpus
American White Pelican (1)
Pelecanus erythrorhynchos
Anna's Hummingbird (2)
Calypte anna
Antelope Bitterbrush (25)
Purshia tridentata
Arrowleaf Balsamroot (2)
Balsamorhiza sagittata
Ash-throated Flycatcher (3)
Myiarchus cinerascens
Baker's Globemallow (3)
Iliamna bakeri
Bald Eagle (3)
Haliaeetus leucocephalusDL
Ball-head Standing-cypress (4)
Ipomopsis congesta
Basalt Milkvetch (4)
Astragalus filipes
Bewick's Wren (1)
Thryomanes bewickii
Big Brown Bat (1)
Eptesicus fuscus
Big Sagebrush (46)
Artemisia tridentata
Bitter Cherry (12)
Prunus emarginata
Black-necked Stilt (1)
Himantopus mexicanus
Black-tailed Jackrabbit (6)
Lepus californicus
Blackfoot River Suncup (1)
Neoholmgrenia andina
Bloomer's Fleabane (2)
Erigeron bloomeri
Blue Mountain Buckwheat (3)
Eriogonum strictum
Bluebunch Wheatgrass (2)
Pseudoroegneria spicata
Bonaparte's Gull (1)
Chroicocephalus philadelphia
Bottlebrush Squirrel-tail (4)
Elymus elymoides
Branching Scorpionweed (7)
Phacelia ramosissima
Brazilian Free-tailed Bat (1)
Tadarida brasiliensis
Brewer's Blackbird (4)
Euphagus cyanocephalus
Broad-sheath Desert-parsley (1)
Lomatium vaginatum
Broadleaf Pepper-grass (1)
Lepidium latifolium
Brown-eyed Wolf Lichen (3)
Letharia columbiana
Brown-headed Cowbird (1)
Molothrus ater
Buffalo Bur (1)
Solanum rostratum
Bulbous Woodland-star (1)
Lithophragma glabrum
Bullock's Oriole (8)
Icterus bullockii
Bushtit (1)
Psaltriparus minimus
Bushy-tailed Woodrat (4)
Neotoma cinerea
California Kangaroo Rat (6)
Dipodomys californicus
California Poppy (17)
Eschscholzia californica
California Quail (8)
Callipepla californica
California Rayless Fleabane (2)
Erigeron inornatus
California Scrub Jay (30)
Aphelocoma californica
Calliope Hummingbird (1)
Selasphorus calliope
Canyon Wren (3)
Catherpes mexicanus
Cassin's Finch (4)
Haemorhous cassinii
Cedar Waxwing (4)
Bombycilla cedrorum
Cheatgrass (9)
Bromus tectorum
Chipping Sparrow (3)
Spizella passerina
Choke Cherry (3)
Prunus virginiana
Clark's Grebe (1)
Aechmophorus clarkii
Clasping Pepper-grass (1)
Lepidium perfoliatum
Common Horehound (3)
Marrubium vulgare
Common Mullein (7)
Verbascum thapsus
Common Nighthawk (4)
Chordeiles minor
Common Poorwill (1)
Phalaenoptilus nuttallii
Common Raven (4)
Corvus corax
Common Sagebrush Lizard (4)
Sceloporus graciosus
Common Woolly-sunflower (2)
Eriophyllum lanatum
Common Yarrow (14)
Achillea millefolium
Cooper's Hawk (2)
Astur cooperii
Corrugate-seed Broomspurge (1)
Euphorbia glyptosperma
Cougar (1)
Puma concolor
Coyote (1)
Canis latrans
Coyote Tobacco (20)
Nicotiana attenuata
Curl-leaf Mountain-mahogany (25)
Cercocarpus ledifolius
Curly Bluegrass (1)
Poa secunda
Curveseed Butterwort (1)
Ceratocephala testiculata
Cutleaf Nightshade (1)
Solanum triflorum
Dark-eyed Junco (2)
Junco hyemalis
Desert Figwort (9)
Scrophularia desertorum
Desert Gooseberry (21)
Ribes velutinum
Desert Nightsnake (2)
Hypsiglena chlorophaea
Desert-sweet (49)
Chamaebatiaria millefolium
Diffuse Groundsmoke (1)
Gayophytum diffusum
Doublet (4)
Dimeresia howellii
Douglas' Campion (3)
Silene douglasii
Douglas's Ground Squirrel (22)
Otospermophilus douglasii
Dwarf False Ground-cherry (6)
Leucophysalis nana
Dwarf Purple Monkeyflower (8)
Diplacus nanus
Dwarf Skullcap (5)
Scutellaria nana
Dyer's Woad (3)
Isatis tinctoria
Eastern Warbling-Vireo (1)
Vireo gilvus
Eurasian Collared-Dove (1)
Streptopelia decaocto
Foothill Deathcamas (1)
Toxicoscordion paniculatum
Fragile Fern (14)
Cystopteris fragilis
Giant Blazingstar (14)
Mentzelia laevicaulis
Glandular Layia (11)
Layia glandulosa
Gold Poppy (2)
Eschscholzia caespitosa
Golden Eagle (1)
Aquila chrysaetos
Golden-mantled Ground Squirrel (2)
Callospermophilus lateralis
Gophersnake (8)
Pituophis catenifer
Granite Prickly-phlox (14)
Linanthus pungens
Gray Ball Sage (7)
Salvia dorrii
Gray Flycatcher (1)
Empidonax wrightii
Gray Fox (2)
Urocyon cinereoargenteus
Gray Horsebrush (10)
Tetradymia canescens
Great Basin Wildrye (1)
Leymus cinereus
Great Horned Owl (2)
Bubo virginianus
Greater White-fronted Goose (1)
Anser albifrons
Green Nightshade (1)
Solanum nitidibaccatum
Green-band Mariposa Lily (26)
Calochortus macrocarpus
Hairy Willowherb (1)
Epilobium ciliatum
Hairy Woodpecker (2)
Leuconotopicus villosus
Herb Sophia (1)
Descurainia sophia
Hoary Pincushion (16)
Chaenactis douglasii
Hoary Tansy-aster (16)
Dieteria canescens
Hood's Phlox (9)
Phlox hoodii
Hot-rock Beardtongue (11)
Penstemon deustus
House Finch (1)
Haemorhous mexicanus
Incense Cedar (1)
Calocedrus decurrens
Jagged Chickweed (2)
Holosteum umbellatum
Juniper Titmouse (1)
Baeolophus ridgwayi
Koch's Wolf Spider (1)
Alopecosa kochi
Large-flower Collomia (11)
Collomia grandiflora
Large-fruit Desert-parsley (1)
Lomatium macrocarpum
Lark Sparrow (4)
Chondestes grammacus
Lazuli Bunting (1)
Passerina amoena
Lewis's Woodpecker (2)
Melanerpes lewis
Linearleaf Phacelia (51)
Phacelia linearis
Lodgepole Pine (1)
Pinus contorta
Lowly Beardtongue (3)
Penstemon humilis
Maritime Sunburst Lichen (1)
Xanthoria parietina
Meadow Deathcamas (1)
Toxicoscordion venenosum
Meadow Goat's-beard (6)
Tragopogon dubius
Medusa-head (2)
Taeniatherum caput-medusae
Miner's-lettuce (1)
Claytonia perfoliata
Mountain Bluebird (6)
Sialia currucoides
Mountain Chickadee (2)
Poecile gambeli
Mountain Star-lily (9)
Leucocrinum montanum
Mountain Wildmint (6)
Monardella odoratissima
Mourning Dove (1)
Zenaida macroura
Mt. Lassen Clarkia (2)
Clarkia lassenensis
Mule Deer (19)
Odocoileus hemionus
Naked Buckwheat (10)
Eriogonum nudum
Narrowleaf Milkweed (6)
Asclepias fascicularis
Nettle-leaf Giant-hyssop (3)
Agastache urticifolia
North American Racer (1)
Coluber constrictor
Northern Flicker (4)
Colaptes auratus
Northern Pygmy-Owl (1)
Glaucidium gnoma
Northern Scorpion (17)
Paruroctonus boreus
Northern Shoveler (1)
Spatula clypeata
Nuttall's Povertyweed (1)
Blitum nuttallianum
Oak Titmouse (5)
Baeolophus inornatus
Oceanspray (1)
Holodiscus discolor
Olive-sided Flycatcher (1)
Contopus cooperi
Oregon Bitterroot (2)
Lewisia rediviva
Oval-leaf Buckwheat (2)
Eriogonum ovalifolium
Pacific Treefrog (4)
Pseudacris regilla
Panicled Willowherb (3)
Epilobium brachycarpum
Parrot's-head Indian-paintbrush (3)
Castilleja pilosa
Peregrine Thistle (1)
Cirsium cymosum
Pin Clover (2)
Erodium cicutarium
Pine Violet (5)
Viola purpurea
Pinewoods Pussytoes (11)
Antennaria geyeri
Pinnate Tansy-mustard (1)
Descurainia pinnata
Pinyon Jay (10)
Gymnorhinus cyanocephalusUR
Plains Agrocybe (3)
Agrocybe pediades
Poison-hemlock (1)
Conium maculatum
Pond Slider (1)
Trachemys scripta
Ponderosa Pine (5)
Pinus ponderosa
Prairie Falcon (2)
Falco mexicanus
Prairie Flax (5)
Linum lewisii
Prairie Junegrass (2)
Koeleria macrantha
Punctured Rocktripe Lichen (1)
Umbilicaria torrefacta
Purple Green-gentian (4)
Frasera albicaulis
Purple Missionbells (7)
Fritillaria atropurpurea
Pursh's Milkvetch (11)
Astragalus purshii
Red Crossbill (1)
Loxia curvirostra
Red Larkspur (9)
Delphinium nudicaule
Red-breasted Sapsucker (2)
Sphyrapicus ruber
Red-stem Springbeauty (8)
Claytonia rubra
Red-tailed Hawk (2)
Buteo jamaicensis
Rock Wren (4)
Salpinctes obsoletus
Rocky Mountain Woodsia (1)
Woodsia scopulina
Roezl's penstemon (3)
Penstemon roezlii
Rough Eyelashweed (2)
Blepharipappus scaber
Royal Beardtongue (1)
Penstemon speciosus
Rubber Boa (1)
Charina bottae
Rubber Rabbitbrush (32)
Ericameria nauseosa
Sacramento Cycladenia (2)
Cycladenia humilis
Sagebrush Buttercup (3)
Ranunculus glaberrimus
San Francisco Broomrape (3)
Aphyllon franciscanum
Say's Phoebe (1)
Sayornis saya
Scapose Scalepod (1)
Idahoa scapigera
Sidewalk Screw Moss (2)
Syntrichia ruralis
Silvery Ragwort (12)
Packera cana
Slender Hareleaf (3)
Lagophylla ramosissima
Slender Woodland-star (5)
Lithophragma tenellum
Small-flower Blue-eyed Mary (2)
Collinsia parviflora
Small-head Tarweed (5)
Hemizonella minima
Small-leaf Agastache (6)
Agastache parvifolia
Sooty Grouse (2)
Dendragapus fuliginosus
Spotted Towhee (3)
Pipilo maculatus
Spreading Phlox (5)
Phlox diffusa
Sticky-leaf Rabbitbrush (7)
Chrysothamnus viscidiflorus
Stonewall Rim Lichen (1)
Protoparmeliopsis muralis
Striped Whipsnake (2)
Masticophis taeniatus
Suksdorf's Monkeyflower (3)
Erythranthe suksdorfii
Sulphur-flower Buckwheat (37)
Eriogonum umbellatum
Swainson's Hawk (1)
Buteo swainsoni
Sweetclover (1)
Melilotus officinalis
Tall Tumble-mustard (4)
Sisymbrium altissimum
Tansy-leaf Suncup (2)
Taraxia tanacetifolia
Threadleaf Fleabane (5)
Erigeron filifolius
Tongue Clarkia (1)
Clarkia rhomboidea
Townsend's Big-eared Bat (4)
Corynorhinus townsendii
Townsend's Solitaire (2)
Myadestes townsendi
Turkey Vulture (6)
Cathartes aura
Two-form Pussytoes (1)
Antennaria dimorpha
Utah Serviceberry (1)
Amelanchier utahensis
Veiled Polypore (2)
Cryptoporus volvatus
Violet-green Swallow (2)
Tachycineta thalassina
Virgate Scorpionweed (7)
Phacelia heterophylla
Volcanic Daisy (2)
Erigeron elegantulus
Wavyleaf Indian-paintbrush (10)
Castilleja applegatei
Wax Currant (25)
Ribes cereum
Western Black Widow Spider (3)
Latrodectus hesperus
Western Bluebird (9)
Sialia mexicana
Western Fence Lizard (59)
Sceloporus occidentalis
Western Gray Beardtongue (2)
Penstemon laetus
Western Grebe (2)
Aechmophorus occidentalis
Western Gromwell (2)
Lithospermum ruderale
Western Joepye-weed (1)
Ageratina occidentalis
Western Juniper (56)
Juniperus occidentalis
Western Kingbird (10)
Tyrannus verticalis
Western Lynx Spider (1)
Oxyopes scalaris
Western Meadowlark (8)
Sturnella neglecta
Western Peony (1)
Paeonia brownii
Western Rattlesnake (19)
Crotalus oreganus
Western Screech-Owl (2)
Megascops kennicottii
Western Skink (5)
Plestiodon skiltonianus
Western Stinging-nettle (1)
Hesperocnide tenella
Western Swordfern (1)
Polystichum munitum
Western Tanager (8)
Piranga ludoviciana
Western Wallflower (1)
Erysimum capitatum
White Plectritis (4)
Plectritis macrocera
White-crowned Sparrow (4)
Zonotrichia leucophrys
White-faced Ibis (1)
Plegadis chihi
Whitemarked Cobweb Weaver (1)
Steatoda albomaculata
Whitestem Blazingstar (4)
Mentzelia albicaulis
Wicker-stem Buckwheat (18)
Eriogonum vimineum
Wolf Lichen (5)
Letharia vulpina
Woolly Mule's-ears (3)
Wyethia mollis
Wyoming Indian-paintbrush (5)
Castilleja linariifolia
Yellow-headed Blackbird (1)
Xanthocephalus xanthocephalus
Yellow-rumped Warbler (6)
Setophaga coronata
Yellow-staining Collomia (1)
Collomia tinctoria
a cave obligate millipede (14)
Plumatyla humerosa
a fungus (1)
Uromyces intricatus
a fungus (1)
Calbovista subsculpta
a fungus (1)
Deconica montana
a fungus (3)
Ustilago bullata
a harvestman (1)
Protolophus niger
a jumping spider (1)
Habronattus hirsutus
a jumping spider (1)
Habronattus oregonensis
a jumping spider (1)
Phidippus octopunctatus
a rocktripe lichen (2)
Umbilicaria nodulospora
dense mistletoe (32)
Phoradendron densum
maroon-spotted woollystar (1)
Eriastrum signatum
Federally Listed Species (11)

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.

Green's Awnless Orcutt Grass
Tuctoria greeneiEndangered
Lost River Sucker
Deltistes luxatusEndangered
Northern Spotted Owl
Strix occidentalis caurinaThreatened
Shortnose Sucker
Chasmistes brevirostrisEndangered
Slender Orcutt Grass
Orcuttia tenuisThreatened
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 (19)

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

American Avocet
Recurvirostra americana
American White Pelican
Pelecanus erythrorhynchos
Bald Eagle
Haliaeetus leucocephalus
Broad-tailed Hummingbird
Selasphorus platycercus
California Gull
Larus californicus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Clark's Grebe
Aechmophorus clarkii
Evening Grosbeak
Coccothraustes vespertinus
Flammulated Owl
Psiloscops flammeolus
Forster's Tern
Sterna forsteri
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
Sage Thrasher
Oreoscoptes montanus
Western Grebe
Aechmophorus occidentalis
Migratory Birds of Conservation Concern (17)

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 Avocet
Recurvirostra americana
American White Pelican
Pelecanus erythrorhynchos
Bald Eagle
Haliaeetus leucocephalus
Broad-tailed Hummingbird
Selasphorus platycercus
California Gull
Larus californicus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Clark's Grebe
Aechmophorus clarkii
Evening Grosbeak
Coccothraustes vespertinus
Forster's Tern
Sterna forsteri
Golden Eagle
Aquila chrysaetos
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Rufous Hummingbird
Selasphorus rufus
Sage Thrasher
Oreoscoptes montanus
Western Grebe
Aechmophorus occidentalis
Vegetation (8)

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

61.7%
Inter-Mountain Basins Cliff and Canyon
Sparse / Sparsely Vegetated · 1,305 ha
12.5%
Great Basin Big Sagebrush Shrubland
Shrub / Shrubland · 1,164 ha
G311.1%
5.7%
Columbia Plateau Steppe and Grassland
Herb / Grassland · 284 ha
G22.7%
North American Arid West Emergent Marsh
Herb / Riparian · 225 ha
2.1%
1.9%
North Pacific Active Volcanic Rock and Cinder Land
Sparse / Sparsely Vegetated · 107 ha
1.0%

Lavas

Lavas Roadless Area

Modoc National Forest, California · 25,864 acres