The edge of this COA includes the Starkey Experimental Forest northwest of US Highway 244 and Camp Elkanah; and Starkey to the east before spreading south and encompassing the Fly Creek and upper Grande Ronde River watersheds.
Follows the Upper Deschutes River closely from the Cascade Crest.
Area focuses on the Umpqua River Estuary, bounded by the coastline to the west and Highway 38 to the east
Area follows the windy Umpqua River and surrounding riparian and upland habitat. Bounded at the north by Elkton and at the south near the towns of Melrose and Winchester
Located within the Umpqua National Forest and includes the headwaters of the Umpqua River.
Area includes the Tualatin River and floodplain, numerous tributaries, and associated uplands from the confluence with the Willamette River upstream to Patton Valley, west of Gaston.
Spanning an area in the southeastern corner Harney County and southwestern Malheur County, this COA encompasses the Trout Creek Mountains, the Oregon Canyon Mountains, and the Blue Mountains. It includes numerous Wilderness Study Areas, such as Disaster Peak, Alvord Desert, Fifteenmile Creek, Mahogany Ridge, Oregon Canyon, Twelvemile Creek, and Willow Creek.
A 37 square mile area of coast range mixed and late successional conifer forest and riparian areas of North Yamhill River wetlands. Area is conterminal with Nestucca River Watershed and Scoggins Valley-Mount Richmond COAs.
This area includes Ecola State Park and surrounding 9 miles of coastline between Seaside and Cannon Beach. The area includes coastal Sitka spruce forest, eventually opening up to a grassy bluff. Sea stacks punctuate the long sweep of shoreline to the south. Offshore islands provide nesting and loafing areas for several species of seabirds.
A large bay some 6 miles long with five rivers flowing in to it. Extensive sand/mudflats provide habitat for migratory and breeding waterfowl and shorebirds. The bay is protected from the open ocean by a the Bayocean Spit, formerly used by nesting Western Snowy Plovers.