There is a total of 11158 clues beginning with ri
- River in which Rasputin was thrown
- River in which Thetis dipped Achilles
- River in WWI battle history
- River in WWI fighting
- River in Wyoming and Montana
- River in Xanadu
- River in Xanadu
- River in Yakut
- River in Yorkshire
- River in Yorkshire, 70 miles to the Ouse
- River in Yorkshire, flowing into the Humber
- River in Yorkshire
- River in Yosemite Valley
- River in Yugoslavia, 110 miles to the Sava
- River in Yugoslavia, tributary of Sava
- River in Yugoslavia
- River in Yuma
- River in Zaire
- River including Livingstone Falls
- River inlet
- River inlets
- River intentionally flooded in WW I
- River into another
- River into Baltic Sea
- River into Bay of Bengal
- River into Bay of Biscay
- River into Bay of Korea
- River into Bay of the Seine
- River into Beauly Firth
- River into Bering Sea
- River into Bight of Benin
- River into Black Sea
- River into Bristol Channel
- River into Bristol Channel
- River into Chesapeake Bay
- River into Chesapeake Bay
- River into Corpus Christi Bay
- River into Danube
- River into Donegal Bay
- River into Donegal Bay
- River into English Channel
- River into Firth of Clyde
- River into Firth of Forth
- River into Georgia Strait
- River into Gulf of California
- River into Gulf of Finland
- River into Gulf of Guinea
- River into Gulf of Mexico
- River into Gulf of Riga
- River into Gulf of Venice
- River into Irish Sea
- River into Issyk-Kul
- River into Korea Bay
- River into Korea Bay
- River into Lake Aral
- River into Lake Balkash
- River into Lake Balkhash
- River into Lake Biel
- River into Lake Chad
- River into Lake Chad
- River into Lake Champlain
- River into Lake Erie, busiest inland waterway
- River into Lake Geneva
- River into Lake Ilmen
- River into Lake Ilmen
- River into Lake Ontario
- River into Lake Ontario
- River into Lake Rudolph, Abyssinia
- River into Laptev Sea
- River into Lyon
- River into many puzzles
- River into Monterey Bay
- River into Moray Firth
- River into Newark Bay
- River into North Sea
- River into Ostia
- River into Pamlico Bay
- River into Sakhalin gulf
- River into Sea of Azov
- River into Solway Firth
- River into Tartary Strait
- River into Tatar Strait
- River into Tatar Strait
- River into the Aar
- River into the Adriatic
- River into the Amazon
- River into the Amur
- River into the Arabian Sea
- River into the Arctic Ocean
- River into the Arctic
- River into the Arkansas
- River into the Atlantic near Lisbon
- River into the Baltic
- River into the Baltic, 563 miles
- River into the Baltic
- River into the Baltic: Czech name
- River into the Bay of Bengal
- River into the Bay of Biscay
- River into the Bay of Biscay
- River into the Bay of Korea