The northern extent of this long narrow COA includes Tudor Lake at the eastern base of Steens Mountain. Continuing south and encompassing a large swath of the Alvord Desert, including the seasonal and alkali Alvord Lake, the COA ends just south of the community of Fields in the Pueblo Valley.
Ecoregions
Key Habitats
Natural Lakes
Natural lakes are relatively large bodies of freshwater surrounded by land that were formed through geological processes, such as glacial scouring, tectonic movements, volcanic activity and river meander cutoffs. In Oregon, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes. Depth is not a reference for characterization of …
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.
Species of Greatest Conservation Need
Alvord Chub (Documented)
Siphateles alvordensis
American Pika (Modeled Habitat)
Ochotona princeps
American White Pelican (Observed)
Pelecanus erythrorhynchos
Black-necked Stilt (Observed)
Himantopus mexicanus
Bobolink (Observed)
Dolichonyx oryzivorus
Borax Lake Chub (Documented)
Siphateles boraxobius
Borax Lake Ramshorn (Observed)
Planorbella oregonensis
Western Burrowing Owl (Modeled Habitat)
Athene cunicularia hypugaea
California Myotis (Modeled Habitat)
Myotis californicus
Caspian Tern (Observed)
Hydroprogne caspia
Columbia Spotted Frog (Modeled Habitat)
Rana luteiventris
Ferruginous Hawk (Observed)
Buteo regalis
Franklin’s Gull (Observed)
Leucophaeus pipixcan
Greater Sage-Grouse (Observed)
Centrocercus urophasianus
Greater Sandhill Crane (Observed)
Antigone canadensis tabida
Hoary Bat (Modeled Habitat)
Lasiurus cinereus
Kit Fox (Modeled Habitat)
Vulpes macrotis
Lahontan Cutthroat Trout (Documented)
Oncorhynchus clarki henshawi
Long-billed Curlew (Observed)
Numenius americanus
Long-legged Myotis (Modeled Habitat)
Myotis volans
Pallid Bat (Modeled Habitat)
Antrozous pallidus
Peregrine Falcon (Observed)
Falco peregrinus anatum
Pygmy Rabbit (Modeled Habitat)
Brachylagus idahoensis
Silver-haired Bat (Observed)
Lasionycteris noctivagans
Snowy Egret (Modeled Habitat)
Egretta thula brewsteri
Swainson’s Hawk (Observed)
Buteo swainsoni
Townsend’s Big-eared Bat (Modeled Habitat)
Corynorhinus townsendii
Western Snowy Plover (Observed)
Anarhynchus nivosus nivosus
Western Toad (Modeled Habitat)
Anaxyrus boreas
Willow Flycatcher (Observed)
Empidonax traillii