The Umpqua River COA (93 mi2) follows the winding Umpqua River from Elkton south to the confluence with the North Umpqua River. This area includes the surrounding riparian and upland habitat along the river corridor. This COA is adjacent to the North Umpqua River Area and South Fork Umpqua River and Tributaries COAs.
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
Klamath Mountains
The Klamath Mountains ecoregion covers much of southwestern Oregon, including the Klamath Mountains, Siskiyou Mountains, the interior valleys and foothills between these and the Cascade Range, and the Rogue and Umpqua river valleys. Several popular and scenic rivers run through the ecoregion, including the Umpqua, Rogue, Illinois, and Applegate rivers. Historically, this ecoregion is known …
Key Habitats
Grasslands
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.
Natural Lakes
Natural lakes are relatively large bodies of freshwater surrounded by land that were formed through geological processes, such as glacial scouring, tectonic movements, volcanic activity and river meander cutoffs. In Oregon, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes. Depth is not a reference for characterization of …
Oak Habitats
There are several oak habitat types in Oregon, where oaks comprise most of the canopy. These can include oak woodlands, oak forest, oak chaparral, and riparian oak. Oak savanna is covered in the Grasslands Key Habitat. Oaks may also co-dominate a canopy in oak/fir, oak pine, and oak hardwood habitats.
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 habitats that are inundated or saturated by surface water or ground water at a frequency and duration sufficient to support vegetation typically adapted for life in sodden soil conditions. While dominated by periods of inundation, the natural ecological cycle may also include dry intervals. Permanently wet habitats include backwater sloughs, oxbow lakes, peatlands, …
Species of Greatest Conservation Need
Acorn Woodpecker (Observed)
Melanerpes formicivorus
California Myotis (Modeled Habitat)
Myotis californicus
Chinook Salmon (Documented)
Oncorhynchus tshawytscha
Clouded Salamander (Observed)
Aneides ferreus
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Coastal Tailed Frog (Modeled Habitat)
Ascaphus truei
Coho Salmon (Documented)
Oncorhynchus kisutch
Common Nighthawk (Modeled Habitat)
Chordeiles minor
Foothill Yellow-legged Frog (Modeled Habitat)
Rana boylii
Fringed Myotis (Modeled Habitat)
Myotis thysanodes
Western Grasshopper Sparrow (Observed)
Ammodramus savannarum perpallidus
Hoary Bat (Modeled Habitat)
Lasiurus cinereus
Lewis’s Woodpecker (Modeled Habitat)
Melanerpes lewis
Long-legged Myotis (Observed)
Myotis volans
Marbled Murrelet (Modeled Habitat)
Brachyramphus marmoratus
Northern Red-legged Frog (Observed)
Rana aurora
Northern Spotted Owl (Observed)
Strix occidentalis caurina
Olive-sided Flycatcher (Observed)
Contopus cooperi
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
Pallid Bat (Modeled Habitat)
Antrozous pallidus
Peregrine Falcon (Observed)
Falco peregrinus anatum
Western Purple Martin (Observed)
Progne subis arboricola
Red Tree Vole (Observed)
Arborimus longicaudus
Ringtail (Observed)
Bassariscus astutus
Rough popcornflower (Observed)
Plagiobothrys hirtus
Silver-haired Bat (Modeled Habitat)
Lasionycteris noctivagans
Southern Torrent Salamander (Modeled Habitat)
Rhyacotriton variegatus
Steelhead / Rainbow / Redband Trout (Documented)
Oncorhynchus mykiss ssp
Townsend’s Big-eared Bat (Observed)
Corynorhinus townsendii
Northwestern Pond Turtle (Observed)
Actinemys marmorata
Western Ridged Mussel (Observed)
Gonidea angulata
Western Toad (Modeled Habitat)
Anaxyrus boreas
Yellow-breasted Chat (Observed)
Icteria virens auricollis