This is the most southeastern COA in Oregon and shares borders with Idaho and Nevada. It includes significant sections of the main stem Owyhee River, the Middle Fork Owyhee River, Little Owyhee River, and Toppin Creek. Its northern extent includes the three forks confluence, and its western border abuts the Little Louse Canyon COA (205) and includes the Fort McDermitt Reservation. Areas of special biological interest include Lookout Butte Wilderness Study Area, Owyhee River Canyon Wilderness Study Area, Upper West Little Owyhee Wilderness Study Area, and the Toppin Creek Butte Area of Critical Environmental Concern/Research Natural Area.
COA ID: 206
Ecoregions
Strategy Habitats
Aspen Woodlands
Aspen woodlands are woodland or forest communities, dominated by aspen trees with a forb, grass, or shrub understory. Aspen woodlands can also occur within conifer forests.
Natural Lakes
Natural lakes are relatively large bodies of freshwater surrounded by land. For the purposes of the Conservation Strategy, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes.
Flowing Water and Riparian Habitats
Flowing Water and Riparian Habitats include all naturally occurring flowing freshwater streams and rivers throughout Oregon as well as the adjacent riparian habitat.
Sagebrush Habitats
Sagebrush habitats include all sagebrush steppe- and shrubland-dominated communities found east of the Cascade Mountains.
Wetlands
Wetlands are covered with water during all or part of the year. Permanently wet habitats include backwater sloughs, oxbow lakes, and marshes, while seasonally wet habitats include seasonal ponds, vernal pools, and wet prairies.
Strategy Species
Burrowing Owl (Observed)
Athene cunicularia hypugaea
California Myotis (Modeled Habitat)
Myotis californicus
Columbia Spotted Frog (Modeled Habitat)
Rana luteiventris
Ferruginous Hawk (Observed)
Buteo regalis
Great Basin Redband Trout (Documented)
Oncorhynchus mykiss newberrii
Greater Sage-Grouse (Observed)
Centrocercus urophasianus
Hoary Bat (Modeled Habitat)
Lasiurus cinereus
Kit Fox (Modeled Habitat)
Vulpes macrotis
Long-billed Curlew (Observed)
Numenius americanus
Long-legged Myotis (Observed)
Myotis volans
Pallid Bat (Modeled Habitat)
Antrozous pallidus
Pygmy Rabbit (Modeled Habitat)
Brachylagus idahoensis
Silver-haired Bat (Observed)
Lasionycteris noctivagans
Swainson’s Hawk (Observed)
Buteo swainsoni
Townsend’s Big-eared Bat (Modeled Habitat)
Corynorhinus townsendii
Western Toad (Observed)
Anaxyrus boreas
White-tailed Jackrabbit (Observed)
Lepus townsendii
Willow Flycatcher (Observed)
Empidonax traillii