The Malheur River Headwaters COA spans two ecoregions. Within the BM ecoregion, the COA includes Logan Valley and part of the Strawberry Mountain Wilderness and continues south to Battle Mountain (just north of Highway 306). Within the NBR, the COA is comprised of land associated with the Malheur River south of Battle Mountain to approximately one mile above the Warm Springs Reservoir. From west to east the COA includes the northern half of the Stinkingwater Mountains to Carey Tables east of the Malheur River.
COA ID: 180
Located in NE Oregon, the Blue Mountains ecoregion is the largest ecoregion in the state. It provides a diverse complex of mountain ranges, valleys, and plateaus that extend beyond Oregon into the states of Idaho and Washington.
Northern Basin and Range
The Northern Basin and Range ecoregion covers the very large southeastern portion of the state, from Burns south to the Nevada border and from the Christmas Valley east to Idaho. It is largely a high elevation desert-like area dominated by sagebrush communities and habitats.
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.
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
Late Successional Mixed Conifer Forests
Late successional mixed conifer forests provide a multi-layered tree canopy, including large-diameter trees, shade-tolerant tree species in the understory, and a high volume of dead wood, such as snags and logs.
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.
Ponderosa Pine Woodlands
Ponderosa pine woodlands are dominated by ponderosa pine, but may also have lodgepole pine, western juniper, aspen, western larch, grand fir, Douglas-fir, mountain mahogany, incense cedar, sugar pine, or white fir, depending on ecoregion and site conditions. Their understories are variable combinations of shrubs, herbaceous plants, and grasses.
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 include all sagebrush steppe- and shrubland-dominated communities found east of the Cascade Mountains.
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.
American Three-toed Woodpecker (Modeled Habitat)
Black-backed Woodpecker (Observed)
Black-necked Stilt (Observed)
Bobolink (Modeled Habitat)
Bull Trout (Documented)
California Myotis (Modeled Habitat)
Columbia Spotted Frog (Observed)
Ferruginous Hawk (Observed)
Flammulated Owl (Observed)
Franklin’s Gull (Observed)
Fringed Myotis (Modeled Habitat)
Great Gray Owl (Modeled Habitat)
Greater Sage-Grouse (Observed)
Greater Sandhill Crane (Observed)
Antigone canadensis tabida
Hoary Bat (Modeled Habitat)
Lewis’s Woodpecker (Observed)
Loggerhead Shrike (Modeled Habitat)
Long-billed Curlew (Observed)
Long-legged Myotis (Modeled Habitat)
Mountain Quail (Modeled Habitat)
Olive-sided Flycatcher (Observed)
Great Basin Redband Trout (Documented)
Oncorhynchus mykiss newberrii
Pallid Bat (Modeled Habitat)
American Pika (Modeled Habitat)
Pileated Woodpecker (Observed)
Pygmy Rabbit (Modeled Habitat)
Silver-haired Bat (Modeled Habitat)
Snowy Egret (Modeled Habitat)
Swainson’s Hawk (Observed)
Upland Sandpiper (Observed)
Burrowing Owl (Observed)
Athene cunicularia hypugaea
Western Toad (Modeled Habitat)
White-headed Woodpecker (Observed)
Willow Flycatcher (Modeled Habitat)
Wolverine (Modeled Habitat)