The Willamette River mainstem from the confluence with the Columbia River (RM 0) upstream to Willamette Falls in Oregon City (RM26), its floodplain and adjacent uplands.
COA ID: 059
Oregon’s Coast Range, known for its dramatic scenery, is extremely diverse, with habitats ranging from open sandy dunes to lush forests and from tidepools to headwater streams. It follows the coastline and extends east through coastal forest to the border of the Willamette Valley and Klamath Mountains ecoregions
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.
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 (Modeled Habitat)
Cascade Torrent Salamander (Modeled Habitat)
Chinook Salmon (Documented)
Chipping Sparrow (Observed)
Clouded Salamander (Modeled Habitat)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Coho Salmon (Documented)
Common Nighthawk (Observed)
Fringed Myotis (Modeled Habitat)
Hoary Bat (Modeled Habitat)
Northern Red-legged Frog (Observed)
Northern Spotted Owl (Modeled Habitat)
Strix occidentalis caurina
Olive-sided Flycatcher (Observed)
Oregon Slender Salamander (Modeled Habitat)
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
Short-eared Owl (Modeled Habitat)
Asio flammeus flammeus
Silver-haired Bat (Observed)
Steelhead / Rainbow / Redband Trout (Documented)
Oncorhynchus mykiss ssp
Townsend’s Big-eared Bat (Modeled Habitat)
Western Bluebird (Observed)
Western Gray Squirrel (Modeled Habitat)
Western Meadowlark (Observed)
Western Painted Turtle (Observed)
Chrysemys picta bellii
Western Pond Turtle (Observed)
Purple Martin (Observed)
Progne subis arboricola
Willow Flycatcher (Observed)
Yellow-breasted Chat (Modeled Habitat)
Icteria virens auricollis