| Source or Source Confluence | River | % Correct |
|---|---|---|
| Australia's High Country, around 25 miles from Mt. Kosciuszko, NSW/Victoria | Murray River | 91%
|
| Barania Góra, Silesian Beskids, Poland | Vistula | 82%
|
| Mount Hermon, Syria and Lebanon | Jordan River | 76%
|
| Confluence of Paraná and Uruguay Rivers, Argentina and Uruguay border | Río de la Plata | 64%
|
| Lake Hazar, Taurus Mountains, Turkey | Tigris | 64%
|
| Confluence of the Marico and Crocodile Rivers, Botswana/South Africa border | Limpopo River | 55%
|
| Chemayungdung Glacier or Angsi Glacier, Burang, Tibet, China | Brahmaputra | 45%
|
| Coudersport, Potter County, Pennsylvania | Allegheny River | 27%
|
| Echo Lake, Hopkinton, Massachusetts | Charles River | 27%
|
| Mungaragiyn-Gol Ridge, Mongolia | Yenisei River | 27%
|
| Beattyville, Lee County, Kentucky | Kentucky River | 24%
|
| Paektu Mountain, China/North Korea border | Yalu River | 24%
|
| Big Stone Lake, Minnesota | Minnesota River | 18%
|
| Unnamed pond, Wells County, North Dakota | James River (Dakota) | 15%
|
| Moosehead Lake, Maine | Kennebec River | 9%
|