The mainstem Willamette River from Willamette Falls (RM 26) to the confluence with Calapooia River in Albany (RM 120), plus floodplain, and adjacent uplands.
COA ID: 060
The Willamette Valley ecoregion is bounded on the west by the Coast Range and on the east by the Cascade Range. This long mostly level alluvial plain has some scattered areas of low basalt, and contrasts with productive farmland and large urban areas. It has the fastest-growing human population in the state resulting in challenges due to land-use changes.
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
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.
Oak woodlands are characterized by an open canopy dominated by Oregon white oak.
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.
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.
Acorn Woodpecker (Observed)
California Myotis (Observed)
Chipping Sparrow (Observed)
Clouded Salamander (Modeled Habitat)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Common Nighthawk (Observed)
Fringed Myotis (Modeled Habitat)
Grasshopper Sparrow (Observed)
Ammodramus savannarum perpallidus
Hoary Bat (Modeled Habitat)
Northern Red-legged Frog (Observed)
Northern Spotted Owl (Observed)
Strix occidentalis caurina
Olive-sided Flycatcher (Observed)
Oregon Chub (Documented)
Oregon Slender Salamander (Modeled Habitat)
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
Peacock Larkspur (Observed)
Purple Martin (Observed)
Progne subis arboricola
Short-eared Owl (Observed)
Asio flammeus flammeus
Silver-haired Bat (Observed)
Southern Torrent Salamander (Modeled Habitat)
Townsend’s Big-eared Bat (Modeled Habitat)
Western Bluebird (Observed)
Western Gray Squirrel (Observed)
Western Meadowlark (Observed)
Western Painted Turtle (Observed)
Chrysemys picta bellii
Northwestern Pond Turtle (Observed)
Western Rattlesnake (Modeled Habitat)
Western Ridged Mussel (Observed)
White Rock Larkspur (Observed)
White-breasted Nuthatch (Observed)
Sitta carolinensis aculeata
Willow Flycatcher (Observed)
Yellow-breasted Chat (Observed)
Icteria virens auricollis