Siskiyou A

Six Rivers National Forest · California · 1,017 acres · RoadlessArea Rule (2001)
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Observed Species (52)

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

(1)
Lewisia × whiteae
Blue Field Gilia (1)
Gilia capitata
Bolander's Lily (9)
Lilium bolanderi
Brewer's Spruce (2)
Picea breweriana
California Lady's-slipper (1)
Cypripedium californicum
California Pitcherplant (5)
Darlingtonia californica
Coast Range Lomatium (1)
Lomatium martindalei
Coastal Cutthroat Trout (1)
Oncorhynchus clarkiiDL
Coastal Tailed Frog (1)
Ascaphus truei
Common Gartersnake (1)
Thamnophis sirtalis
Del Norte Salamander (1)
Plethodon elongatus
Douglas-fir (1)
Pseudotsuga menziesii
Ensatina (1)
Ensatina eschscholtzii
Fairy Slipper (1)
Calypso bulbosa
Giant Pinedrops (1)
Pterospora andromedea
Giant Rattlesnake-plantain (1)
Goodyera oblongifolia
Hall's Violet (1)
Viola hallii
Hooker's Mandarin (1)
Prosartes hookeri
Kellogg Lily (1)
Lilium kelloggii
Large-flower Yellow Fawnlily (1)
Erythronium grandiflorum
Lax Stonecrop (2)
Sedum laxum
Lee's Bitterroot (1)
Lewisia leeana
Longleaf Oregon-grape (3)
Berberis nervosa
Marbled Wild Ginger (1)
Asarum marmoratum
Marsh Grass-of-Parnassus (1)
Parnassia palustris
Milky Kelloggia (1)
Kelloggia galioides
Northwestern Gartersnake (1)
Thamnophis ordinoides
Ojai Fritillary (1)
Fritillaria affinis
Orange Honeysuckle (1)
Lonicera ciliosa
Orange Sea Cucumber (1)
Cucumaria miniata
Pacific Rhododendron (1)
Rhododendron macrophyllum
Sacramento Cycladenia (1)
Cycladenia humilis
Sadler's Oak (3)
Quercus sadleriana
Scarlet Skyrocket (1)
Ipomopsis aggregata
Single-flowered Clintonia (1)
Clintonia uniflora
Siskiyou Bells (3)
Prosartes parvifolia
Siskiyou Bitterroot (1)
Lewisia cotyledon
Siskiyou False Hellebore (1)
Veratrum insolitum
Snowplant (1)
Sarcodes sanguinea
Solomon's-plume (1)
Maianthemum racemosum
Southern Torrent Salamander (1)
Rhyacotriton variegatus
Square-twigged Huckleberry (1)
Vaccinium membranaceum
Stream Trefoil (1)
Hosackia oblongifolia
Thickleaf Bird's-foot-trefoil (1)
Hosackia crassifolia
Toothed Wintergreen (1)
Pyrola dentata
Turkey Tail (1)
Trametes versicolor
Vanilla-leaf (1)
Achlys triphylla
Varied-leaf Collomia (1)
Collomia heterophylla
Western Poison-oak (1)
Toxicodendron diversilobum
Western Trillium (1)
Trillium ovatum
Yolla Bolly Bedstraw (1)
Galium ambiguum
Federally Listed Species (14)

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
Franklin Bumble Bee
Bombus frankliniEndangered
Northern Spotted Owl
Strix occidentalis caurinaThreatened
Red Mountain Rockcress
Arabis mcdonaldianaEndangered
Vernal Pool Fairy Shrimp
Branchinecta lynchiThreatened
Vernal Pool Tadpole Shrimp
Lepidurus packardiEndangered
California Condor
Gymnogyps californianusE, XN
Marbled Murrelet
Brachyramphus marmoratus
Monarch
Danaus plexippusProposed Threatened
North American Wolverine
Gulo gulo luscus
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Pacific Marten
Martes caurina
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Yellow-billed Cuckoo
Coccyzus americanus
Other Species of Concern (5)

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

Chestnut-backed Chickadee
Poecile rufescens rufescens
Flammulated Owl
Psiloscops flammeolus
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Wrentit
Chamaea fasciata
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.

Chestnut-backed Chickadee
Poecile rufescens
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Wrentit
Chamaea fasciata
Vegetation (2)

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

California Mixed Conifer Forest
Tree / Conifer · 300 ha
GNR72.8%
California Mixed Evergreen Forest
Tree / Conifer · 77 ha
GNR18.7%

Siskiyou A

Siskiyou A Roadless Area

Six Rivers National Forest, California · 1,017 acres