The area connects with Columbia – Clatskanie COA and contains the entire Clatskanie River watershed. OWEB has granted Lower Columbia Watershed Council and others to reconnect Westport Slough to the Clatskanie River.
COA ID: 008
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
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.
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.
California Myotis (Modeled Habitat)
Chinook Salmon (Documented)
Chum Salmon (Documented)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Coastal Tailed Frog (Modeled Habitat)
Coho Salmon (Documented)
Columbia Torrent Salamander (Modeled Habitat)
Cope’s Giant Salamander (Modeled Habitat)
Fringed Myotis (Modeled Habitat)
Hoary Bat (Modeled Habitat)
Long-legged Myotis (Modeled Habitat)
Marbled Murrelet (Modeled Habitat)
Northern Red-legged Frog (Observed)
Northern Spotted Owl (Modeled Habitat)
Strix occidentalis caurina
Olive-sided Flycatcher (Observed)
Peregrine Falcon (Observed)
Falco peregrinus anatum
Purple Martin (Modeled Habitat)
Progne subis arboricola
Red Tree Vole (Modeled Habitat)
Silver-haired Bat (Modeled Habitat)
Western Toad (Modeled Habitat)
Steelhead / Rainbow / Redband Trout (Documented)
Oncorhynchus mykiss ssp