| SONORAN | Desert straddling the border of the southwest US and northwest Mexico (7) |
| MOJAVE | Desert straddling the border between California and Nevada (6) |
| PYRENEES | Mountain range straddling the border of France and Spain (8) |
| CHOLLA | Spiny cactus of the southwest US and northern Mexico |
| PUEBLO | A communal village in the southwest US and parts of Latin America (6) |
| YAQUI | Member of a Native American people of Arizona and northwest Mexico |
| YUMA | Desert straddling the US-Mexico border (4) |
| RIOGRANDE | River in the southwest United States and northern Mexico (3,6) |
| NIAGARA | This rhododendron cultivar is also a river, gorge and natural feature on the border of the Canadian Province of Ontario and the US state of New York (7) |
| SARACEN | Member of one of the nomadic Arabic tribes of the Syrian desert that harassed the borders of the Roman Empire (7) |
| ATHLONE | Town on the River Shannon, on the border of the Irish counties of Roscommon and Westmeath (7) |
| ANDOVER | Hampshire town on the River Anton, west of Basingstoke and northwest of the city of Winchester (7) |
| PACIFIC | Largest body of salt water on Earth, extending from the Arctic in the north to the borders of the Southern Ocean. (7) |
| COUPLES | At least four cars on the border of the lake (7) |
| TIJUANA | City and resort in Baja California, northwest Mexico (7) |
| ROSALES | Capital of the state of Sinaloa in NW Mexico (7) |
| SINALOA | Coastal state of NW Mexico on the Gulf of California; capital, Culiacan (7) |
| SIMPLON | Trade route in the Alps between southwest Switzerland and northwest Italy (7,4) |
| RIVIERA | Part of the Mediterranean coastal region of SE France and NW Italy, extending from Cannes to La Spezia (7) |
| DURANGO | State in NW Mexico whose cities include Gomez Palacio and Lerdo (7) |
