Hoover - Twin Lakes

Humboldt-Toiyabe National Forest · California · 102 acres · RoadlessArea Rule (2001)
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Observed Species (68)

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

American Black Bear (1)
Ursus americanus
American Coot (1)
Fulica americana
Antelope Bitterbrush (1)
Purshia tridentata
Arrow-leaf Groundsel (1)
Senecio triangularis
Arrowleaf Balsamroot (1)
Balsamorhiza sagittata
Beaked Beardtongue (1)
Penstemon rostriflorus
Big Western Juniper (6)
Juniperus grandis
Bitter Cherry (1)
Prunus emarginata
Black Cottonwood (1)
Populus trichocarpa
Bracken Fern (1)
Pteridium aquilinum
Brewer's Bittercress (1)
Cardamine breweri
Brewer's Blackbird (1)
Euphagus cyanocephalus
Brown Trout (2)
Salmo trutta
Bull Elephant's-head (1)
Pedicularis groenlandica
California Ground Squirrel (1)
Otospermophilus beecheyi
Common Merganser (2)
Mergus merganser
Common Mullein (2)
Verbascum thapsus
Common Muskrat (1)
Ondatra zibethicus
Curl-leaf Mountain-mahogany (2)
Cercocarpus ledifolius
Douglas' Squirrel (2)
Tamiasciurus douglasii
Entireleaf Stonecrop (1)
Rhodiola integrifolia
False Puffball (1)
Reticularia lycoperdon
Floriferous Monkeyflower (2)
Erythranthe floribunda
Fly Amanita (1)
Amanita muscaria
Giant Pinedrops (3)
Pterospora andromedea
Golden-mantled Ground Squirrel (2)
Callospermophilus lateralis
Granite Prickly-phlox (1)
Linanthus pungens
Greenleaf Manzanita (1)
Arctostaphylos patula
Hoary Tansy-aster (1)
Dieteria canescens
Jeffrey's Pine (2)
Pinus jeffreyi
Juniper Mistletoe (1)
Phoradendron juniperinum
King Bolete (2)
Boletus edulis
Leichtlin's Mariposa Lily (7)
Calochortus leichtlinii
Longleaf Hawk's-beard (1)
Crepis acuminata
Mountain Chickadee (1)
Poecile gambeli
Mountain Hemlock (1)
Tsuga mertensiana
Mule Deer (5)
Odocoileus hemionus
Nettle-leaf Giant-hyssop (2)
Agastache urticifolia
New World Dyer's Polypore (1)
Phaeolus hispidoides
Quaking Aspen (3)
Populus tremuloides
Red Baneberry (1)
Actaea rubra
Red-osier Dogwood (1)
Cornus sericea
Red-tailed Hawk (1)
Buteo jamaicensis
Rocky Mountain Maple Felt Mite (1)
Aceria calaceris
Rubber Boa (1)
Charina bottae
Scarlet Skyrocket (5)
Ipomopsis aggregata
Sierra Dome Sheetweaver (1)
Neriene litigiosa
Sierra Saxifrage (1)
Micranthes aprica
Siskiyou Mountains Owl's-clover (2)
Orthocarpus cuspidatus
Sockeye Salmon (3)
Oncorhynchus nerka
Spotted Coralroot (3)
Corallorhiza maculata
Steller's Jay (2)
Cyanocitta stelleri
Sulphur-flower Buckwheat (1)
Eriogonum umbellatum
Tall White Bog Orchid (1)
Platanthera dilatata
Tall Woolly Buckwheat (1)
Eriogonum elatum
Thimbleberry (2)
Rubus parviflorus
Tobacco Ceanothus (1)
Ceanothus velutinus
Veiled Polypore (1)
Cryptoporus volvatus
Virgate Scorpionweed (1)
Phacelia heterophylla
Western Blue Iris (2)
Iris missouriensis
Western Columbine (1)
Aquilegia formosa
Western Fence Lizard (1)
Sceloporus occidentalis
Western Toad (1)
Anaxyrus boreas
Western Wood-Pewee (1)
Contopus sordidulus
White-headed Woodpecker (1)
Leuconotopicus albolarvatus
Woolly Mule's-ears (3)
Wyethia mollis
Wyoming Indian-paintbrush (3)
Castilleja linariifolia
a fungus (1)
Laetiporus conifericola
Federally Listed Species (9)

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.

Sierra Nevada Bighorn Sheep
Ovis canadensis sierraeEndangered
Sierra Nevada Yellow-legged Frog
Rana sierraeEndangered
Whitebark Pine
Pinus albicaulisThreatened
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
Yellow-billed Cuckoo
Coccyzus americanus
Other Species of Concern (9)

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
California Gull
Larus californicus
Cassin's Finch
Haemorhous cassinii
Clark's Grebe
Aechmophorus clarkii
Golden Eagle
Aquila chrysaetos
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Western Grebe
Aechmophorus occidentalis
Migratory Birds of Conservation Concern (9)

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
California Gull
Larus californicus
Cassin's Finch
Haemorhous cassinii
Clark's Grebe
Aechmophorus clarkii
Golden Eagle
Aquila chrysaetos
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Western Grebe
Aechmophorus occidentalis
Vegetation (3)

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

California Mixed Conifer Forest
Tree / Conifer · 15 ha
GNR37.6%
Sierra Nevada Jeffrey Pine Forest
Tree / Conifer · 4 ha
GNR9.9%
GNR8.4%

Hoover - Twin Lakes

Hoover - Twin Lakes Roadless Area

Humboldt-Toiyabe National Forest, California · 102 acres