Related Clues:
- River of the underworld, in myth
- ''Inferno'' river
- Old dead flower from Greece found in Sticks reportedly
- Moon of 6-Down named for a mythological river
- Mother of Nike, in Greek myth
- Zeus swore oaths upon it
- Boundary river
- Charon's 26 carried dead souls across this river
- Greek underworld river
- River to 16-Across
- Classical river of forgetfulness
- River Charon rowed on
- Reported jams in flow of underground
- River where elephants never drink?
- Underworld river; sounds like remote area