Narrower Terms (42)

• Ash Valley (Or.)
• Big Elk River Valley (Or.)
• Bully Creek Valley (Malheur County, Or.)
• Calapooia River Valley (Or.)
• Clackamas River Valley (Or.)
• Columbia River Valley
• Coquille Valley (Or.)
• Deschutes River Valley (Or.)
• Fort Rock Valley (Or.)
• Grande Ronde River Valley (Or. and Wash.)
• Guano Valley (Or. and Nev.)
• Hood River Valley (Or.)
• Illinois River Valley (Or.)
• Imnaha River Valley (Or.)
• John Day River Valley (Or.)
• Klamath River Valley (Or. and Calif.)
• Long Tom River Valley (Or.)
• Lower Columbia River Valley (Or. and Wash.)
• Malheur River Valley (Or.)
• McKenzie River Valley (Or.)
• Mill Creek Valley (Or. and Wash.)
• Millican Valley (Or.)
• Mohawk River Valley (Or.)
• Nehalem Valley (Or.)
• Owyhee River Valley
• Powder River Valley (Or.)
• Pueblo Valley (Or. and Nev.)
• Rogue River Valley (Klamath County-Curry County, Or.)
• Santiam River Valley (Or.)
• Siuslaw River Valley (Or.)
• Soap Creek Valley (Benton County and Polk County, Or.)
• Sumpter Valley (Or.)
• Treasure Valley (Idaho and Or.)
• Umatilla River Valley (Or.)
• Umpqua River Valley (Or.)
• Walla Walla Valley (Or. and Wash.)
• Wallowa River Valley (Or.)
• Warner Valley (Or.)
• Willamette River Valley (Or.)
• Willow Valley (Or.)
• Yachats River Valley (Or.)
• Yaquina River Valley (Or.)