• Alluvial deposits
• Alluvial plains
• Certain Soviet nuclear submarines
• Certain stars
• Fertile-soil areas
• Flood-prone areas
• Fraternity letters
• Greek D's
• Greek letters
• Mississippi sights
• Mouth features
• Mouth formations
• Mouth parts
• Nile and Mississippi
• Pointed river formations
• River areas
• River areas named for their shape
• River ends
• River ends, often
• River features
• River formations
• River mouth deposits
• River mouth features
• River mouth formations
• River mouths
• River plains named for their usual shape
• River-mouth areas
• Sites of big deposits
• Some fertile regions
• Some fraternity members
• Some mouths
• Some sorority women
• The Mekong and Nile have them
• They have many channels
• They're slated to receive deposits
• Three-sided formations
• Triangles in the Odyssey
• Triangular areas
• Triangular deposits
• Triangular Greek letters
• Triangular soil deposits