Fifteenmile Creek, COA 147

COA ID: 147

VIEW DATA LAYERS IN COMPASS.

Photo is needed for this COA. — Submit photos to: OCS.Revision@ODFW.Oregon.gov

Geographic boundaries of the COAs were updated for the 2026 State Wildlife Action Plan and the associated COA profiles are intended to provide additional information. Content of each COA profile is being refined and will be updated to reflect current conditions when feasible. Please help us by submitting information on Local Conservation Actions, Plans, or Potential Partners to: OCS.revision@odfw.oregon.gov.

Area just east of The Dalles Airport, following Fifteen Mile Creek, and extending north to the Oregon/Washington border along the Columbia River.

Recommended Conservation Actions

Control noxious weeds and manage grazing along riparian corridor.
Habitat restoration activities to increase productivity and abundance of wild steelhead.

Potential Partners

Bureau of Indian Affairs
Oregon Department of Fish and Wildlife
US Forest Service

Special Features

General

Important habitat for Summer and Winter Steelhead

Protected Areas

Columbia River Gorge
County Open Space
The Dalles Unit

Ecoregions

Columbia Plateau

The Columbia Plateau ecoregion was shaped by cataclysmic floods and large deposits of wind-borne silt and sand earlier in its geological history. It is dominated by a rolling landscape of arid lowlands dissected by several important rivers, and extends from the eastern slopes of the Cascades Mountains, south and east from the Columbia River to the Blue Mountains.

Key Habitats

Grassland Strategy Habitat

Grasslands

Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.

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.

Sagebrush Habitats

Sagebrush Habitats

Sagebrush habitats include all sagebrush steppe- and shrubland-dominated communities found east of the Cascade Mountains.

Species of Greatest Conservation Need

American Goshawk, © Ben Meredyk/iNaturalist, some rights reserved (CC-BY)

American Goshawk (Modeled)

Astur atricapillus

American Pika (Modeled)

Ochotona princeps

American White Pelican (Observed and Modeled)

Pelecanus erythrorhynchos

Black-backed Woodpecker (Modeled)

Picoides arcticus

Photo is needed for this SGCN.

Black Tern (Modeled)

Chlidonias niger

Brewer’s Sparrow (Observed and Modeled)

Spizella breweri breweri

California Myotis on tree

California Myotis (Modeled)

Myotis californicus

Cascades Frog (Modeled)

Rana cascadae

Caspian Tern

Caspian Tern (Observed and Modeled)

Hydroprogne caspia

Chipping Sparrow (Observed and Modeled)

Spizella passerina

Coastal Cutthroat Trout (Modeled)

Oncorhynchus clarki clarki

Coastal Tailed Frog (Modeled)

Ascaphus truei

Common Nighthawk (Observed and Modeled)

Chordeiles minor

Photo is needed for this SGCN.

Dalles Mountainsnail (Observed)

Oreohelix variabilis

Ferruginous Hawk (Observed)

Buteo regalis

Flammulated Owl (Modeled)

Psiloscops flammeolus

Fringed Myotis (Modeled)

Myotis thysanodes

Golden Eagle (Observed and Modeled)

Aquila chrysaetos

Great Gray Owl (Modeled)

Strix nebulosa

Harlequin Duck (Modeled)

Histrionicus histrionicus

Hoary Bat (Modeled)

Lasiurus cinereus

Larch Mountain Salamander (Modeled)

Plethodon larselli

Lewis’s Woodpecker (Modeled)

Melanerpes lewis

Photo is needed for this SGCN.

Little Brown Myotis (Modeled)

Myotis lucifugus

Loggerhead Shrike (Observed and Modeled)

Lanius ludovicianus

Long-billed Curlew (Modeled)

Numenius americanus

Long-legged Myotis (Modeled)

Myotis volans

North American Porcupine (Modeled)

Erethizon dorsatum

Northern Spotted Owl (Modeled)

Strix occidentalis caurina

Northwestern Pond Turtle (Modeled)

Actinemys marmorata

Olive-sided Flycatcher (Observed and Modeled)

Contopus cooperi

Oregon Spotted Frog (Modeled)

Rana pretiosa

Pacific Fisher (Modeled)

Pekania pennanti

Pacific Lamprey

Pacific Lamprey (Modeled)

Entosphenus tridentatus

Pacific Marten (Modeled)

Martes caurina

Pallid Bat (Modeled)

Antrozous pallidus

Short-eared Owl (Modeled)

Asio flammeus flammeus

Silver-haired Bat (Modeled)

Lasionycteris noctivagans

Photo is needed for this SGCN.

Sockeye Salmon (Modeled)

Oncorhynchus nerka

Swainson’s Hawk (Modeled)

Buteo swainsoni

Townsend's Big-eared Bat

Townsend’s Big-eared Bat (Modeled)

Corynorhinus townsendii

Trumpeter Swan (Observed)

Cygnus buccinator

Western Bluebird (Observed and Modeled)

Sialia mexicana occidentalis

Western Burrowing Owl (Modeled)

Athene cunicularia hypugaea

Grasshopper Sparrow

Western Grasshopper Sparrow (Modeled)

Ammodramus savannarum perpallidus

Western Gray Squirrel (Observed and Modeled)

Sciurus griseus

Western Grebe (Observed and Modeled)

Aechmophorus occidentalis

Photo is needed for this SGCN.

Western Long-eared Myotis (Modeled)

Myotis evotis

Western Meadowlark (Observed and Modeled)

Sturnella neglecta

Western Painted Turtle on a log

Western Painted Turtle (Modeled)

Chrysemys picta belli

Western Rattlesnake (Modeled)

Crotalus oreganus oreganus

Western River Lamprey (Modeled)

Occidentis ayresii

Photo is needed for this SGCN.

Western Small-footed Myotis (Modeled)

Myotis ciliolabrum

Western Toad (Modeled)

Anaxyrus boreas

White-breasted Nuthatch (Pacific) (Modeled)

Sitta carolinensis aculeata

White-tailed Jackrabbit (Modeled)

Lepus townsendii

Willow Flycatcher

Willow Flycatcher (Observed and Modeled)

Empidonax traillii

Wilson’s Phalarope (Modeled)

Phalaropus tricolor

Wolverine

Wolverine (Modeled)

Gulo gulo

Photo is needed for this SGCN.

Yuma Myotis (Modeled)

Myotis yumanensis