<Tr> <Th_colspan="6"> Continent color key </Th> </Tr> <Tr> <Td> Africa </Td> <Td> Asia </Td> <Td> Oceania </Td> <Td> Europe </Td> <Td> North America </Td> <Td> South America </Td> </Tr> <Table> <Tr> <Th> River </Th> <Th> Age (Mya) </Th> <Th> Outflow </Th> <Th> Most significant criterion for the age </Th> </Tr> <Tr> <Td> Finke </Td> <Td> 350 - 400 </Td> <Td> Lake Eyre (intermittent) </Td> <Td> Predates the Alice Springs Orogeny; several other smaller rivers in the Northern Territory are of a similar age </Td> </Tr> <Tr> <Td> Meuse </Td> <Td> 320 to 340 </Td> <Td> North Sea </Td> <Td> Paleozoic, dissects the Ardennes during the Hercynian The Hercynian Orogeny mountain upflift was contemporary with the Appalachian - forming Alleghenian orogeny, both 320 to 340 ma . </Td> </Tr> <Tr> <Td> New </Td> <Td> 260 to 325 </Td> <Td> Kanawha River </Td> <Td> Dissects the Appalachian Mountains, formed by the Alleghenian orogeny, 320 - 340 ma </Td> </Tr> <Tr> <Td> Susquehanna </Td> <Td> 260 to 325 </Td> <Td> Chesapeake Bay </Td> <Td> Dissects the Appalachian Mountains, formed by the Alleghenian orogeny, 320 - 340 ma </Td> </Tr> <Tr> <Td> French Broad </Td> <Td> 260 to 325 </Td> <Td> Tennessee River </Td> <Td> Dissects the Appalachian Mountains, formed by the Alleghenian orogeny, 320 - 340 ma . The New, Susquehanna, French Broad are the only significant rivers that fully dissect the Appalachian core; the Hudson River is of more recent geologic origin . </Td> </Tr> <Tr> <Td> Rhine </Td> <Td> 240 </Td> <Td> North Sea </Td> <Td> Triassic, possibly older if it dissected mountains uplifted during the Hercynian in addition to the Eocene with the Alps or the Miocene with the Upper Rhine Graben </Td> </Tr> <Tr> <Td> Save </Td> <Td> 205 </Td> <Td> Indian Ocean </Td> <Td> Formed during rifting when Gondwana broke up . </Td> </Tr> <Tr> <Td> Amazon </Td> <Td> 200 </Td> <Td> Atlantic Ocean </Td> <Td> Jurassic, but it seems to have flowed in the opposite direction as an extension of the Congo, i.e. long before the formation of Andes </Td> </Tr> <Tr> <Td> Amur </Td> <Td> 125 </Td> <Td> Sea of Okhotsk </Td> <Td> Known to be at least Cretaceous in age, but crosses mountains even older </Td> </Tr> <Tr> <Td> Macleay </Td> <Td> 80 </Td> <Td> Tasman Sea </Td> <Td> Predates uplift of Great Escarpment </Td> </Tr> <Tr> <Td> Murrumbidgee </Td> <Td> 75 </Td> <Td> Murray River </Td> <Td> Predates uplift of Australian Alps </Td> </Tr> <Tr> <Td> Colorado </Td> <Td> 75 </Td> <Td> Gulf of California </Td> <Td> Uplift during Laramide orogeny, see Geology of the Grand Canyon area </Td> </Tr> <Tr> <Td> Nile </Td> <Td> 65 to 75 </Td> <Td> Mediterranean Sea </Td> <Td> 65 to 75 for the Sudd section; the rest of the river is only 1 or 2 million years old </Td> </Tr> <Tr> <Td> Thames </Td> <Td> 58 </Td> <Td> North Sea </Td> <Td> Late Palaeocene Period Thanetian Stage . </Td> </Tr> <Tr> <Td> Indus (Sindhu) </Td> <Td> 45 </Td> <Td> Arabian Sea </Td> <Td> Source in the Himalayas and Karakoram Mountains </Td> </Tr> <Tr> <Td> Tyne </Td> <Td> 30 </Td> <Td> North Sea </Td> <Td> The Tyne, 30 MYA began to carve its valley, by removing softer chalk rocks and exposing harder rocks . Significantly predates the last Ice Age . </Td> </Tr> <Tr> <Td> Yangtze (Chang Jiang) </Td> <Td> 23 to 36.5 </Td> <Td> East China Sea </Td> <Td> Post-dates the Three Gorges formation (36.5 ma) </Td> </Tr> </Table> <Tr> <Th> River </Th> <Th> Age (Mya) </Th> <Th> Outflow </Th> <Th> Most significant criterion for the age </Th> </Tr>

Which is the oldest river in the world