Narrower Terms (10)

• Alsea River Estuary (Or.)
• Chetco River Estuary (Or.)
• Columbia River Estuary (Or. and Wash.)
• Coos Bay Estuary (Or.)
• Coquille River Estuary (Or.)
• Salmon River Estuary (Or.)
• Siuslaw River Estuary (Or.)
• South Slough (Coos County, Or.)
• Tillamook Bay Estuary (Or.)
• Umpqua River Estuary (Or.)