![Upper Siuslaw](https://www.oregonconservationstrategy.com/media/COA_089_Upper-Siuslaw_Martyne-Reesman_ODFW-e1449104327313-750x563.jpg)
Follows the windy Siuslaw River and surrounding habitat. Area builds from the Siuslaw Estuary COA to the west and extends east towards Cottage Grove.
COA ID: 089
Ecoregions
![Coast Range Ecoregion](https://www.oregonconservationstrategy.com/media/Late-Successional-Mixed-Conifer-Forest_David-Patte_USFWS-e1449604051928-255x185.jpg)
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
![Klamath Mountains Ecoregion](https://www.oregonconservationstrategy.com/media/Klamath-Mountains-Ecoregion_USFS-e1450251018598-255x185.jpg)
Klamath Mountains
The Klamath Mountains ecoregion covers much of southwestern Oregon, including the Umpqua Mountains, Siskiyou Mountains, and interior valleys and foothills between these and the Cascade Range. The Rogue watershed has the largest population of any coastal watershed in Oregon (Jackson County, Josephine County, and a portion of Curry County). Several popular and scenic rivers run …
![West Cascades Ecoregion](https://www.oregonconservationstrategy.com/media/West-Cascades-Ecoregion_U.S.-Forest-Service-e1450251305123-255x185.jpg)
West Cascades
The West Cascades ecoregion extends from east of the Cascade Mountains summit to the foothills of the Willamette, Umpqua, and Rogue Valleys, and spans the entire length of the state of Oregon. It is largely dominated by conifer forests, moving into alpine parklands and dwarf shrubs at higher elevations.
![Finley Muddy Creek Area](https://www.oregonconservationstrategy.com/media/COA_084_Finley-Muddy-Creek-Area_George-Gentry_USFWS-e1449103392686-255x185.jpg)
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
![Grassland Strategy Habitat](https://www.oregonconservationstrategy.com/media/Grasslands_West-Eugene-Wetlands-e1450248034479-255x185.jpg)
Grasslands
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
![Coast Range Ecoregion](https://www.oregonconservationstrategy.com/media/Late-Successional-Mixed-Conifer-Forest_David-Patte_USFWS-e1449604051928-255x185.jpg)
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.
![Example of Oak Woodlands, which is a Strategy Habitat within the Oregon Conservation Strategy](https://www.oregonconservationstrategy.com/media/Oak-Woodland_Shawn-Woods-e1449604993826-255x185.jpg)
Oak Woodlands
Oak woodlands are characterized by an open canopy dominated by Oregon white oak.
![](https://www.oregonconservationstrategy.com/media/COA_004_Necanicum-River_Herman-Biederbeck-ODFW-2-247x185.jpg)
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.
![Ducks on a wetland in Ladd Marsh Wildlife Area, Oregon](https://www.oregonconservationstrategy.com/media/Wetland_Cathy-Nowak_ODFW-e1449605097558-255x185.jpg)
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
![](https://www.oregonconservationstrategy.com/media/Acorn-woodpecker_Keith-Kohl_460-e1464200864557-180x185.jpg)
Acorn Woodpecker (Modeled Habitat)
Melanerpes formicivorus
![California Myotis on tree](https://www.oregonconservationstrategy.com/media/California-myotis-Michael-Durham-255x170.jpg)
California Myotis (Observed)
Myotis californicus
![Chinook Salmon - Spring/Summer Run](https://www.oregonconservationstrategy.com/media/Spring-Chinook_980-1-255x185.jpg)
Chinook Salmon (Documented)
Oncorhynchus tshawytscha
![](https://www.oregonconservationstrategy.com/media/Chipping-sparrow_Keith-Kohl_460-255x185.jpg)
Chipping Sparrow (Observed)
Spizella passerina
![Clouded Salamander](https://www.oregonconservationstrategy.com/media/Clouded-salamander_980-255x185.jpg)
Clouded Salamander (Observed)
Aneides ferreus
![](https://www.oregonconservationstrategy.com/media/Coastal-cutthroat-trout_Doug-Markle_460-255x137.jpg)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
![](https://www.oregonconservationstrategy.com/media/Coastal-tailed-frog_USFWS_460-255x185.jpg)
Coastal Tailed Frog (Modeled Habitat)
Ascaphus truei
![](https://www.oregonconservationstrategy.com/media/Coho_salmon_BLM_460-4-255x185.jpg)
Coho Salmon (Documented)
Oncorhynchus kisutch
![](https://www.oregonconservationstrategy.com/media/Common-nighthawk_Nick-Myatt_640-255x185.jpg)
Common Nighthawk (Observed)
Chordeiles minor
![](https://www.oregonconservationstrategy.com/media/Foothill_yellow_legged_frog_juvenile_Thomas_Lossen_460-255x185.jpg)
Foothill Yellow-legged Frog (Modeled Habitat)
Rana boylii
![](https://www.oregonconservationstrategy.com/media/Hoary-bat_Wikemedia_460-255x185.jpg)
Hoary Bat (Modeled Habitat)
Lasiurus cinereus
![](https://www.oregonconservationstrategy.com/media/long-legged-Myotis-Michael-Durham-255x170.jpg)
Long-legged Myotis (Modeled Habitat)
Myotis volans
![](https://www.oregonconservationstrategy.com/media/Northern-red-legged-frog_Martyne-Reesman_460-255x182.jpg)
Northern Red-legged Frog (Observed)
Rana aurora
![](https://www.oregonconservationstrategy.com/media/Spotted-Owl_BLM_460-255x185.jpg)
Northern Spotted Owl (Observed)
Strix occidentalis caurina
![](https://www.oregonconservationstrategy.com/media/Olive-sided-Flycatcher_Dennis-Garrison_USFS_460-255x185.jpg)
Olive-sided Flycatcher (Observed)
Contopus cooperi
![Oregon Vesper Sparrow](https://www.oregonconservationstrategy.com/media/Oregon_vesper_sparrow_Simon_Wray_980-255x185.jpg)
Oregon Vesper Sparrow (Modeled Habitat)
Pooecetes gramineus affinis
![](https://www.oregonconservationstrategy.com/media/Purple-Martin_Keith-Kohl-255x185.jpg)
Purple Martin (Observed)
Progne subis arboricola
![](https://www.oregonconservationstrategy.com/media/Red-Tree-Vole-Michael-Durham-255x170.jpg)
Red Tree Vole (Modeled Habitat)
Arborimus longicaudus
![Ringtail](https://www.oregonconservationstrategy.com/media/Ringtail_Robertbody_WikiMedia_753-255x185.jpg)
Ringtail (Modeled Habitat)
Bassariscus astutus
![](https://www.oregonconservationstrategy.com/media/Short-eared-owl_Keith-Kohl_460-255x185.jpg)
Short-eared Owl (Modeled Habitat)
Asio flammeus flammeus
![](https://www.oregonconservationstrategy.com/media/Silver-haired-bat_Roger-Rodriguez-255x185.jpg)
Silver-haired Bat (Modeled Habitat)
Lasionycteris noctivagans
![](https://www.oregonconservationstrategy.com/media/Southern_torrent_salamander_John_Clare_flickr_460-255x185.jpg)
Southern Torrent Salamander (Observed)
Rhyacotriton variegatus
![Townsend's Big-eared Bat](https://www.oregonconservationstrategy.com/media/Townsends-Big-earred-Bat_Don-Albright_980-255x185.jpg)
Townsend’s Big-eared Bat (Modeled Habitat)
Corynorhinus townsendii
![](https://www.oregonconservationstrategy.com/media/Wayside-aster_ODA_460-255x185.jpg)
Wayside Aster (Observed)
Eucephalus vialis
![](https://www.oregonconservationstrategy.com/media/Western-Bluebird_Keith-Kohl_460-255x185.jpg)
Western Bluebird (Observed)
Sialia mexicana
![](https://www.oregonconservationstrategy.com/media/western-gray-squirrel_keith-kohl-255x185.jpg)
Western Gray Squirrel (Modeled Habitat)
Sciurus griseus
![](https://www.oregonconservationstrategy.com/media/Western-Meadowlark_USFWS_460-255x185.jpg)
Western Meadowlark (Observed)
Sturnella neglecta
![Western Painted Turtle on a log](https://www.oregonconservationstrategy.com/media/W-Painted-Turtle_Keith-Kohl-255x171.jpg)
Western Painted Turtle (Modeled Habitat)
Chrysemys picta bellii
![](https://www.oregonconservationstrategy.com/media/Western-Pond-Turtle_Keith-Kohl_460-255x185.jpg)
Northwestern Pond Turtle (Observed)
Actinemys marmorata
![](https://www.oregonconservationstrategy.com/media/W-Rattlesnake_IE-Flickr_Charlotte-Ganskopp_460-255x185.jpg)
Western Rattlesnake (Modeled Habitat)
Crotalus oreganus
![Willow Flycatcher](https://www.oregonconservationstrategy.com/media/Willow_flycatcher_Keith_Kohl_980-255x185.jpg)
Willow Flycatcher (Observed)
Empidonax traillii
![](https://www.oregonconservationstrategy.com/media/Yellow_breasted_chat_Kelly_Colgan_Azar_flickr_460-255x185.jpg)
Yellow-breasted Chat (Modeled Habitat)
Icteria virens auricollis