| YUKON | Canada/u.s.a. river whose tributaries include the White, Stewart, Klondike, Porcupine and Tanana rivers (5) |
| PLATA | S.A. river |
| ALASKA | Where the Tanana flows |
| RHINE | River whose tributaries include the Moselle and the Ruhr (5) |
| AARE | European river whose tributaries include the Wigger and the Emme |
| SEVERN | English river whose tributaries include the Teme and the Tern (6) |
| COLORADO | U.S. river starting in the Rockies whose tributaries include the Green and Gila Rivers (8) |
| EBRO | European river whose tributaries include the Aragon, Alhama and Guadalope (4) |
| SPEY | Second-longest river of Scotland whose tributaries include the Truim and the Feshie (4) |
| TRENT | Third-longest river in the United Kingdom, whose tributaries include the Tame, Derwent and Dove (5) |
| AMAZON | River in South America whose tributaries include the Madeira and Rio Negro (6) |
| THAMES | River of southern England whose tributaries include the Lea and Kennet (6) |
| TYNE | River in North East England whose tributaries include the Derwent and Don (4) |
| LAWRENCE | Son of a coalminer and a lace-maker, a prolific writer whose novels include The White Peacock, The Rainbow, Women in Love and Lady Chatterley's Lover (8) |
| NILE | River whose tributaries are the Blue and the White |
| GREATLAKES | A chain of five large, interconnected freshwater bodies of water near the Canada U.S. border (5,5) |
| UNDEFENDED | With "longest," word often used to describe the Canada/U.S. border |
| URAL | Its tributaries include the Or and the Ilek |
| TWEED | Its tributaries include the River Teviot and Ettrick Water (5) |
| AFRICA | Old World porcupines live in Europe, ___, and Asia; some examples are the North African crested porcupine, African brush-tailed porcupine, and Indian crested porcupine |
