World Geography
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Stretching 3,211 km, this river passes through Peru and Brazil and empties into the Amazon River.
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Draining an area spanning the south-central United States, this 2,348-km river ends at the Mississippi River.
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Joined by the Mississippi, this tributary is part of a combined 6,275-km system draining to the Gulf of Mexico.
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This 2,432-km river runs through South Africa, Namibia and Lesotho before reaching the Atlantic Ocean.
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Draining an area spanning the Canadian Northwest Territories, this 4,241-km river ends at the Beaufort Sea.
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All 74 questions in this topic, with answers — use it to study, or just browse. Every actual play of the puzzle only pulls a random handful of these into one game, so knowing them all here won't spoil which ones show up or where they're hidden in the grid. Play it here.
Flowing 2,309 km through northeast China, this river drains into the Amur River.
SONGHUAThis 2,620-km river runs through Tajikistan, Afghanistan, Uzbekistan and Turkmenistan before reaching the Aral Sea basin.
AMUDARYAAt 6,400 kilometers long, this river crosses Peru and Brazil on its way to the Atlantic Ocean.
AMAZONAt 2,153 kilometers long, this river crosses Angola and the Democratic Republic of the Congo on its way to the Congo River.
KASAIWinding 2,100 km across China's Xinjiang region, this river empties into the Taklamakan Desert basin.
TARIMAt 3,078 kilometers long, this river crosses Kyrgyzstan, Uzbekistan, Tajikistan and Kazakhstan on its way to the Aral Sea basin.
SYRDARYAThis 2,287-km river runs through Russia, Belarus and Ukraine before reaching the Black Sea.
DNIEPERJoined by the Allegheny, this river system flows 2,102 km before meeting the Mississippi.
OHIOWinding 2,615 km across Colombia and Brazil, this river empties into the Amazon River.
CAQUETAForming much of the US-Mexico border, the Rio '_ _ _ _ _ _' runs 3,057 km to the Gulf of Mexico.
GRANDEThis 4,444-km river runs through China and Russia before reaching the Sea of Okhotsk.
AMURWinding 4,400 km across Siberian Russia, this river empties into the Laptev Sea.
LENAAt 2,292 kilometers long, this river crosses Siberian Russia on its way to the Laptev Sea.
OLENYOKCombined with the Snake River, this Pacific Northwest system runs 2,250 km to the Pacific Ocean.
COLUMBIADraining an area spanning Canada and Alaska, this 3,185-km river ends at the Bering Sea.
YUKONThis 2,101-km river runs through Venezuela and Colombia before reaching the Atlantic Ocean.
ORINOCOStretching 2,250 km, this river passes through Colombia, Venezuela and Brazil and empties into the Amazon River.
NEGROFlowing 6,650 km through Uganda, Sudan and Egypt, this river drains into the Mediterranean Sea.
NILEDraining an area spanning six southern African countries, this 2,740-km river ends at the Mozambique Channel.
ZAMBEZIFlowing 1,805 km through Russia, this river drains into the Volga River.
KAMAStretching 2,410 km, this river passes through Peru and Brazil and empties into the Amazon River.
JURUADraining an area spanning Texas, this 2,060-km river ends at the Gulf of Mexico.
BRAZOSFlowing 4,880 km through Brazil, Paraguay and Argentina, this river drains into the Rio de la Plata estuary.
PARANAJoined by the Uele, this Central African river system runs 2,270 km before meeting the Congo.
UBANGIStretching 5,464 km, this river passes through China and empties into the Bohai Sea.
HUANGHEFlowing 3,180 km through Pakistan, this river drains into the Arabian Sea.
INDUSDraining an area spanning Russia, this 1,809-km river ends at the Barents Sea.
PECHORAWinding 5,539 km across Mongolia and Russia, this river empties into the Kara Sea.
YENISEYFlowing 2,200 km through southern China, this river drains into the South China Sea.
PEARLStretching 1,737 km, this river passes through Peru and empties into the Amazon basin.
MARANONAt 2,704 kilometers long, this river crosses India and Bangladesh on its way to the Bay of Bengal.
GANGESWinding 1,760 km across Colombia, this river empties into the Orinoco River.
GUAVIAREThis 3,060-km river runs through Myanmar and Thailand before reaching the Andaman Sea.
SALWEENAt 2,450 kilometers long, this river crosses Kazakhstan and Russia on its way to the Irtysh River.
ISHIMAt 2,005 kilometers long, this river crosses Colombia, Peru and Brazil on its way to the Amazon basin.
PUTUMAYOFlowing 2,010 km through Argentina, this river drains into the Parana River.
SALADOAt 1,800 kilometers long, this river crosses South Africa, Botswana, Zimbabwe and Mozambique on its way to the Indian Ocean.
LIMPOPOThis 6,300-km river runs through China before reaching the East China Sea.
YANGTZEStretching 4,350 km, this river passes through China, Myanmar, Laos, Thailand, Cambodia and Vietnam and empties into the South China Sea.
MEKONGWinding 3,380 km across Bolivia and Brazil, this river empties into the Amazon River.
MADEIRAFlowing 4,200 km through West Africa, this river drains into the Gulf of Guinea.
NIGERThis 1,799-km river runs through Siberian Russia before reaching the Ob River.
CHULYMFlowing 1,690 km through Nebraska, this river drains into the Missouri River.
PLATTEAt 4,700 kilometers long, this river crosses Central Africa on its way to the Atlantic Ocean.
CONGOWinding 1,974 km across India and Pakistan, this river empties into the Indus River.
CHENABStretching 2,549 km, this river passes through Brazil and Argentina and empties into the Parana River.
PARAGUAYDraining the Great Lakes, the Saint '_ _ _ _ _ _ _ _' runs 3,058 km to its namesake gulf.
LAWRENCEDraining an area spanning Brazil, this 2,210-km river ends at the Amazon River.
TAPAJOSFlowing 2,720 km through Siberian Russia, this river drains into the Lena River.
VILYUYDraining an area spanning China, Kazakhstan and Russia, this 5,410-km river ends at the Gulf of Ob.
IRTYSHBrazil's entirely domestic river is known as the Sao '_ _ _ _ _ _ _ _ _,' flowing 3,180 km to the Atlantic.
FRANCISCOFlowing 2,500 km through Bolivia, Paraguay and Argentina, this river drains into the Paraguay River.
PILCOMAYOAt 3,645 kilometers long, this river crosses Russia on its way to the Caspian Sea.
VOLGAStretching 2,100 km, this river passes through Brazil and empties into the Amazon River.
XINGUJoined by the Saskatchewan, this Canadian river system stretches 2,570 km into Hudson Bay.
NELSONDraining an area spanning Siberian Russia, this 2,513-km river ends at the East Siberian Sea.
KOLYMACombined with the Darling, this Australian river system runs 3,672 km to the Southern Ocean.
MURRAYAt 1,641 kilometers long, this river crosses Guinea, Mali and Mauritania on its way to the Atlantic Ocean.
SENEGALDraining an area spanning Siberian Russia, this 1,726-km river ends at the East Siberian Sea.
INDIGIRKAThis 1,978-km river runs through Siberian Russia before reaching the Lena River.
VITIMJoined by the Araguaia, this Brazilian river system flows roughly 3,650 km to the Atlantic.
TOCANTINSWinding 2,888 km across ten Central and Eastern European countries, this river empties into the Black Sea.
DANUBEStretching 1,950 km, this river passes through Turkey, Syria and Iraq and empties into the Shatt al-Arab.
TIGRISWinding 2,428 km across Russia and Kazakhstan, this river empties into the Caspian Sea.
URALWinding 2,273 km across Siberian Russia, this river empties into the Lena River.
ALDANThis 3,596-km river runs through Turkey, Syria and Iraq before reaching the Persian Gulf, via the Shatt al-Arab.
EUPHRATESIn Tibet this river is called the Yarlung '_ _ _ _ _ _ _,' before becoming the Brahmaputra in India.
TSANGPOCombined with the Shebelle, this Horn of Africa river system reaches the Indian Ocean after about 2,064 km.
JUBBAStretching 2,809 km, this river passes through Myanmar and empties into the Andaman Sea.
IRRAWADDY