| RIOBRAVO | Boundary between the US and Mexico (3,5) |
| RIOGRANDE | River boundary between the US and Mexico (3,6) |
| GRANDE | The Rio -- forms the border between the US and Mexico (6) |
| RIO | River in North America forming the border between the US and Mexico (3,6) |
| BRAVO | River between the USA and Mexico (3,5) |
| RANCHERO | Cattle farm worker in the southwestern US and Mexico (8) |
| OCOTILLO | Spiny, scarlet-flowered shrub of the southwestern US and Mexico |
| DIOMEDEISLANDS | Two small land masses in the Bering Strait, separated by the boundary line between the US and Russia (7,7) |
| TEOSINTE | Tall annual grass of Central America and Mexico related to maize grown for forage (8) |
| SALT | 21 control agreements (I and II) between the US and the Soviet Union (4) |
| ATL | It's between the US and the UK |
| ERIE | One of the Great Lakes, between the US and Canada (4) |
| SALTI | Treaty between the US and the USSR |
| PINTO | ? bean, mottled seed common in the US and Mexico (5) |
| AMERICANROBIN | Migratory songbird of Canada, the US and Mexico |
| RED | Color on the flags of the USA and Mexico |
| NIAGARA | ___ Falls (tourist attraction between the US and Canada) |
| LAKEONTARIO | Body of water between the US and Canada (4,7) |
| GREATLAKES | Bodies of water between the US and Canada (5,5) |
| RYDER | Biennial golf tournament between the USA and Europe; the '_ _ _ _ _' Cup (5) |
