A large (3,000+ acres) island located at River Mile 78-81 along the Lower Columbia River.
COA ID: 053
Ecoregions
Coast Range
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
Willamette Valley
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.
Strategy Habitats
Grasslands
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
Oak Woodlands
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
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.
Strategy Species
California Myotis (Modeled Habitat)
Myotis californicus
Chinook Salmon (Documented)
Oncorhynchus tshawytscha
Chipping Sparrow (Modeled Habitat)
Spizella passerina
Chum Salmon (Documented)
Oncorhynchus keta
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Coho Salmon (Documented)
Oncorhynchus kisutch
Columbia Torrent Salamander (Modeled Habitat)
Rhyacotriton kezeri
Common Nighthawk (Modeled Habitat)
Chordeiles minor
Dusky Canada Goose (Observed)
Branta canadensis occidentalis
Fringed Myotis (Modeled Habitat)
Myotis thysanodes
Hoary Bat (Modeled Habitat)
Lasiurus cinereus
Northern Red-legged Frog (Modeled Habitat)
Rana aurora
Olive-sided Flycatcher (Modeled Habitat)
Contopus cooperi
Oregon Vesper Sparrow (Modeled Habitat)
Pooecetes gramineus affinis
Pacific Lamprey (Documented)
Entosphenus tridentatus
Silver-haired Bat (Modeled Habitat)
Lasionycteris noctivagans
Steelhead / Rainbow / Redband Trout (Documented)
Oncorhynchus mykiss ssp
Western Bluebird (Observed)
Sialia mexicana
Western Gray Squirrel (Modeled Habitat)
Sciurus griseus
Western Meadowlark (Modeled Habitat)
Sturnella neglecta
Western Painted Turtle (Observed)
Chrysemys picta bellii
Northwestern Pond Turtle (Observed)
Actinemys marmorata
Purple Martin (Observed)
Progne subis arboricola
Willow Flycatcher (Observed)
Empidonax traillii
Yellow-breasted Chat (Modeled Habitat)
Icteria virens auricollis