Humboldt - 4th Boulder

Humboldt-Toiyabe National Forest · Nevada · 444 acres · RoadlessArea Rule (2001)
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Federally Listed Species (3)

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.

Whitebark Pine
Pinus albicaulisThreatened
Monarch
Danaus plexippusProposed Threatened
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Other Species of Concern (2)

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

California Gull
Larus californicus
Sage Thrasher
Oreoscoptes montanus
Migratory Birds of Conservation Concern (2)

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.

California Gull
Larus californicus
Sage Thrasher
Oreoscoptes montanus
Vegetation (4)

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

GNR27.3%
Rocky Mountain Aspen Forest
Tree / Hardwood · 49 ha
GNR27.1%
Intermountain Mountain Sagebrush Steppe
Shrub / Shrubland · 47 ha
GNR26.0%
Great Basin Pinyon-Juniper Woodland
Tree / Conifer · 25 ha
GNR13.9%

Humboldt - 4th Boulder

Humboldt - 4th Boulder Roadless Area

Humboldt-Toiyabe National Forest, Nevada · 444 acres