100% | STYX | 4 | River between Earth and Hades |
77% | STYX | 4 | Waterway between Earth and Hades |
55% | INTERPLANETARY | 14 | Between Earth and Venus, e.g. |
54% | MARS | 4 | Planet between Earth and Jupiter |
52% | IRWELL | 6 | River between Manchester and Salford |
50% | MILE | 4 | One of about 93 million between Earth and the sun |
49% | RIOBRAVO | 8 | River between the US and Mexico (2 words) |
47% | AMUR | 4 | Border river between China and Russia |
47% | AMURRIVER | 9 | Major river between Russia and Manchuria |
46% | HUDSON | 6 | River located between New York and New Jersey |
44% | ZIMBABWEAN | 10 | Dweller between the Zambezi and Limpopo rivers |
44% | VENUS | 5 | Planet between Mercury and Earth |
44% | ERIE | 4 | Great Lake between the Detroit and Niagara rivers |
43% | IOWA | 4 | State between Missouri and Mississippi River |
43% | IOWA | 4 | State between Missouri and Mississippi rivers |
43% | MANTLE | 6 | Layer between the Earth's crust and outer core |
43% | DEAN | 4 | Forest of —, region between the Rivers Severn and Wye |
43% | IOWA | 4 | It's sandwiched between the Mississippi and Missouri rivers |
42% | MANTLE | 6 | Layer of the earth between the crust and the core |
42% | MERIDIAN | 8 | Arc between the north and south poles on the earth |
41% | ETRURIA | 7 | Ancient region of central Italy between the Rivers Tiber and Arno |
40% | RHYMNEY | 7 | River in Wales forming the boundary between the historic counties of Glamorgan and Monmouthshire |
40% | YALU | 4 | River that forms a large part of the border between North Korea and China |
40% | NOVASCOTIA | 10 | It lies between the Bay of Fundy and the Saint Lawrence River |
40% | SSW | 3 | General dir. of the Connecticut River between Vt. and N.H. |
40% | STYX | 4 | River that separates Earth and the Underworld, in Greek myth |
40% | POTOMAC | 7 | River that flows between Maryland and Washington, DC |
40% | ORANGE | 6 | River rising in the Drakensberg mountains that forms the boundary between South Africa and Namibia |
39% | WIRRAL | 6 | Peninsula in NW England between the estuaries of the Rivers Dee and Mersey |
39% | STYX | 4 | Boundary between the earth and the underworld, in myth |