| CARTIER | Jacques, French explorer who discovered the St. Lawrence River (7) |
| ESTUARY | An example of one is the wide part of the St. Lawrence River where it meets the Gulf of St. Lawrence |
| ABRAHAM | Field between central Quebec City and the St Lawrence River, Canada; site of a 1759 British victory in the Seven Years" War (6,2,7) |
| BEAUPRE | Quebec town on the St. lawrence River |
| CLARKIA | Genus of North American onagraceous plants named after the US explorer who discovered it |
| LASALLE | French explorer who named Louisiana |
| DESOTO | Hernando ?, Spanish explorer who discovered the Mississippi River (2,4) |
| STURT | Charles, English explorer who discovered the Darling River in Australia in 1828 (5) |
| BRUCE | James ___, Scottish explorer who discovered the source of the Blue Nile (5) |
| JOHNHANNINGSPEKE | Victorian explorer who discovered the headwaters of the Nile |
| ROSS | James Clark -; explorer who discovered the position of the north magnetic pole in 1831 (4) |
| BALBOA | Spanish explorer who discovered the Pacific Ocean |
| FERDINANDMAGELLAN | Explorer who discovered the Philippines in 1521 |
| CORONADO | Spanish explorer who discovered the Grand Canyon |
| JACQUESCARTIER | French explorer who claimed what is now Canada for France in 1534 (7,7) |
| QUARANTINESTATION | The 'Grosse Ile and the Irish Memorial' is a National Historic Site of Canada on the St. Lawrence River where there was one in operation for immigrants at the Port of Quebec, from 1832 to 1937: 2 wds. |
| PLAINSOFABRAHAM | Plateau in E Canada between the city of Quebec and the St Lawrence River; scene of an important British victory (1759) in the Seven Years' War (6,2,7) |
| CADILLAC | U.S. car brand named after the French explorer who founded Detroit (8) |
| PLAINSOF | Field between central Quebec City and the St Lawrence River, Canada; site of a 1759 British victory in the Seven Years" War (6,2,7) |
| KAMOURASKA | 1970 Anne Hebert historical novel sharing the name of the St. Lawrence River village in the Bas-saint-laurent region of Quebec where it is set |
