Arc Dome - Ophir

Humboldt-Toiyabe National Forest · Nevada · 5,652 acres · RoadlessArea Rule (2001)
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Observed Species (100)

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

Alkali False Whitlow-grass (1)
Cusickiella douglasii
American Beaver (2)
Castor canadensis
American Pika (1)
Ochotona princeps
Arrowleaf Balsamroot (2)
Balsamorhiza sagittata
Ball-head Standing-cypress (5)
Ipomopsis congesta
Basalt Milkvetch (1)
Astragalus filipes
Black Cottonwood (1)
Populus trichocarpa
Brewer's Cliffbrake (1)
Pellaea breweri
California Kingsnake (2)
Lampropeltis californiae
Choke Cherry (1)
Prunus virginiana
Clasping-leaf Dogbane (3)
Apocynum cannabinum
Common Sagebrush Lizard (1)
Sceloporus graciosus
Common Townsend-daisy (1)
Townsendia leptotes
Curl-leaf Mountain-mahogany (3)
Cercocarpus ledifolius
Currantleaf Globemallow (1)
Sphaeralcea grossulariifolia
Desert Figwort (3)
Scrophularia desertorum
Desert Goosefoot (1)
Chenopodium pratericola
Desert Peach (2)
Prunus andersonii
Desert Whitlow-grass (1)
Draba arida
Desert paintbrush (5)
Castilleja chromosa
Dwarf Mountain Fleabane (1)
Erigeron compositus
Eastern Warbling-Vireo (1)
Vireo gilvus
Engelmann's Hedgehog Cactus (3)
Echinocereus engelmannii
Entireleaf Ragwort (2)
Senecio integerrimus
Fernleaf Desert-parsley (1)
Lomatium multifidum
Few-seeded Whitlow-grass (1)
Draba oligosperma
Field Horsetail (1)
Equisetum arvense
Fireweed (1)
Chamaenerion angustifolium
Golden-Hardhack (2)
Dasiphora fruticosa
Gophersnake (1)
Pituophis catenifer
Grassy Rock-goldenrod (1)
Petradoria pumila
Hot-rock Beardtongue (3)
Penstemon deustus
King's Milkvetch (2)
Astragalus calycosus
Lanceleaf Stonecrop (1)
Sedum lanceolatum
Limber Pine (6)
Pinus flexilis
Lobeleaf Groundsel (2)
Packera multilobata
Long-flowered Snowberry (1)
Symphoricarpos longiflorus
Long-nosed Leopard Lizard (1)
Gambelia wislizenii
Longleaf Hawk's-beard (1)
Crepis acuminata
Meadow Goat's-beard (3)
Tragopogon dubius
Mound Hedgehog Cactus (2)
Echinocereus triglochidiatus
Mountain Maple (4)
Acer glabrum
Mourning Milkvetch (4)
Astragalus atratus
Musk Thistle (2)
Carduus nutans
Narrowleaf Willow (1)
Salix exigua
Nettle-leaf Giant-hyssop (1)
Agastache urticifolia
Nodding Melicgrass (1)
Melica stricta
Northwestern Indian-paintbrush (1)
Castilleja angustifolia
Nye County Smelowskia (7)
Nevada holmgrenii
Ophir Rockcress (7)
Boechera ophira
Oval-leaf Buckwheat (5)
Eriogonum ovalifolium
Parry's Crazyweed (2)
Oxytropis parryi
Patis Onion (2)
Allium bisceptrum
Perennial Twistflower (1)
Streptanthus cordatus
Pin Clover (1)
Erodium cicutarium
Prairie Junegrass (1)
Koeleria macrantha
Pronghorn (1)
Antilocapra americana
Purple Missionbells (1)
Fritillaria atropurpurea
Pursh's Milkvetch (2)
Astragalus purshii
Quaking Aspen (3)
Populus tremuloides
Rayless Shaggy Fleabane (2)
Erigeron aphanactis
Red-osier Dogwood (2)
Cornus sericea
Rock Wren (1)
Salpinctes obsoletus
Rocky Mountain Woodsia (1)
Woodsia scopulina
Rollins Clover (3)
Trifolium rollinsii
Rough-seed Cat's-eye (1)
Oreocarya flavoculata
Royal Beardtongue (2)
Penstemon speciosus
Showy Green-gentian (4)
Frasera speciosa
Silver Buffaloberry (1)
Shepherdia argentea
Silverleaf Scorpionweed (1)
Phacelia hastata
Silvery Ragwort (1)
Packera cana
Single-leaf Pine (3)
Pinus monophylla
Slender Buckwheat (1)
Eriogonum microtheca
Slender-trumpet Standing-cypress (2)
Ipomopsis tenuituba
Spindle Milkvetch (1)
Astragalus oophorus
Spinystar (1)
Escobaria vivipara
Spring Birch (3)
Betula occidentalis
Starflower Solomon's-plume (4)
Maianthemum stellatum
Sticky-leaf Rabbitbrush (1)
Chrysothamnus viscidiflorus
Striped Whipsnake (1)
Masticophis taeniatus
Sulphur-flower Buckwheat (1)
Eriogonum umbellatum
Tall Swamp Onion (1)
Allium validum
Tall Woolly Buckwheat (2)
Eriogonum elatum
Watson's Goldenweed (1)
Ericameria watsonii
Watson's Spikemoss (2)
Selaginella watsonii
Weak-stem Stonecrop (2)
Sedum debile
Western Cabbage (1)
Caulanthus crassicaulis
Western Cliff Fern (1)
Woodsia oregana
Western Columbine (1)
Aquilegia formosa
Western Fence Lizard (1)
Sceloporus occidentalis
Western Flycatcher (1)
Empidonax difficilis
Western Gromwell (2)
Lithospermum ruderale
Western Joepye-weed (1)
Ageratina occidentalis
Western Peony (1)
Paeonia brownii
Western Rattlesnake (2)
Crotalus oreganus
Western Wallflower (1)
Erysimum capitatum
Woods' Rose (2)
Rosa woodsii
Wyman Creek Buckwheat (1)
Eriogonum rupinum
Wyoming Indian-paintbrush (1)
Castilleja linariifolia
Federally Listed Species (2)

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.

Monarch
Danaus plexippusProposed Threatened
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.

Broad-tailed Hummingbird
Selasphorus platycercus
Cassin's Finch
Haemorhous cassinii
Golden Eagle
Aquila chrysaetos
Northern Harrier
Circus hudsonius
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Rufous Hummingbird
Selasphorus rufus
Sage Thrasher
Oreoscoptes montanus
Virginia's Warbler
Leiothlypis virginiae
Migratory Birds of Conservation Concern (7)

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.

Broad-tailed Hummingbird
Selasphorus platycercus
Cassin's Finch
Haemorhous cassinii
Golden Eagle
Aquila chrysaetos
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Rufous Hummingbird
Selasphorus rufus
Sage Thrasher
Oreoscoptes montanus
Vegetation (10)

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

Great Basin Pinyon-Juniper Woodland
Tree / Conifer · 703 ha
GNR30.7%
Intermountain Mountain Sagebrush Steppe
Shrub / Shrubland · 458 ha
GNR20.0%
GNR12.1%
Great Basin Big Sagebrush Shrubland
Shrub / Shrubland · 262 ha
G311.5%
Great Basin Dry Sagebrush Shrubland
Shrub / Shrubland · 168 ha
GNR7.3%
Rocky Mountain Foothill Shrubland
Shrub / Shrubland · 98 ha
G34.3%
Great Basin Semi-Desert Chaparral
Shrub / Shrubland · 56 ha
GNR2.4%
Rocky Mountain Cliff Canyon and Massive Bedrock
Sparse / Sparsely Vegetated · 55 ha
2.4%
G30.2%

Arc Dome - Ophir

Arc Dome - Ophir Roadless Area

Humboldt-Toiyabe National Forest, Nevada · 5,652 acres