Niger River
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40 free Niger River trivia questions with answers — geography quiz, new questions added Oct 2026.
The Niger is West Africa's great river, and one of the strangest on any map. It starts close to the coast, sets off in the wrong direction, and takes thousands of kilometres to find the sea. For centuries nobody outside the region could say where it began or where it ended. This quiz collects the best fun facts about the Niger River: its looping course and inland delta, the trading cities and medieval empires that grew rich beside it, the explorers who risked everything to trace it, and the wildlife and people who depend on it today. It suits geography fans, students of African history, and anyone who likes a good story about a place they have only half heard of. Every answer comes with a short explanation.
30 of 40 questions with answers and explanations. Play the quiz
Q 01The Niger River rises only 240 km from the Atlantic, then flows away from the sea toward which desert?
Sahara
The Sahara is where the river heads first; it turns back toward the ocean only after a sharp right-hand bend deep in Mali.
Q 02The Great Mosque of Djenné, in the Niger River's inland delta, is the world's largest building made of what?
Mud brick
Mud brick, or adobe, needs constant care, so the whole community of Djenné re-plasters the mosque by hand at a yearly festival.
Q 03Which fabled desert-edge trading city stands about 15 km north of the Niger River's main channel?
Timbuktu
Timbuktu was once linked to its river port, Kabara, by a canal that silted up and was dug out again in 2007.
Q 04Geologists say the Niger River's odd course, heading inland before doubling back to the sea, arose in which way?
Two ancient rivers joined up
Two ancient rivers joined up when the lower one eroded upstream and captured the upper one, which had drained into a now-dry lake.
Q 05Camel caravans hauled which mineral across the desert to Niger River ports, where it was exchanged for gold?
Salt
Salt came in slabs from desert mines such as Taoudenni, and camel caravans were still hauling them south well into the 1900s.
Q 06Which staple grain was domesticated in West Africa's Niger River region, separately from its Asian relative?
Rice
Rice of the African species was first grown in West Africa around 3,000 years ago and is one of only two domesticated species of the grain.
Q 07From Roman times until the 1800s, geographers wrongly believed the Niger River flowed into which other river?
Nile
The Nile seemed the obvious match because both rivers flood every summer, and the myth survived even eyewitness visits to the Niger.
Q 08A UNESCO-listed national park in West Africa is named after a Niger River meander shaped like which letter?
W
W National Park wraps around a double bend in the river and has been a World Heritage Site since 1996.
Q 09Which resource, first found in commercial quantities at Oloibiri in 1956, is extracted across the Niger Delta?
Petroleum
Petroleum from the Oloibiri field, discovered by Shell Darcy, made up Nigeria's first export cargo in February 1958.
Q 10Which ruler of the Mali Empire on the upper Niger River took a vast supply of gold on hajj in 1324?
Mansa Musa
Mansa Musa befriended officials in Cairo on the way, and what they told Arab historians is much of what is known about him today.
Q 11The Niger River begins in the highlands of which West African country, close to its border with Sierra Leone?
Guinea
Guinea holds the source, and from there the river runs about 4,180 km, making it the third-longest in Africa.
Q 12Which capital of Mali lies on the Niger River beside the rapids dividing its upper and middle valleys?
Bamako
Bamako spreads across the river's floodplain, which hampers development along the waterfront and along the tributaries that cross the city.
Q 13Which capital of the Republic of Niger takes its entire municipal water supply from the Niger River?
Niamey
Niamey lies mostly on the river's left bank and hosts the headquarters of the nine-nation Niger Basin Authority.
Q 21A Scottish explorer who drowned on the Niger River in 1806 was trying to prove it joined which other river?
Congo
The Congo theory outlived him and became the general opinion in Europe until the Niger's real outlet was traced in 1830.
Q 22Which river, rising on the Adamawa Plateau of northern Cameroon, is the largest tributary of the Niger River?
Benue
The Benue was once known as the Chadda, and it is also the second-longest river in Nigeria.
Q 23Which hydroelectric dam on the Niger River in Nigeria, finished in 1968, drowned the old town of Bussa?
Kainji
Kainji holds back a lake about 135 km long, and a quarter of the project's cost went on resettling the people it displaced.
Q 14Which Scottish explorer became the first European known to reach the middle Niger River, in July 1796?
Mungo Park
Mungo Park got there after escaping four months of captivity with nothing but his horse and a pocket compass.
Q 15The Bozo people of Mali, nicknamed the masters of the Niger River, are famous for which livelihood?
Fishing
Fishing so defines the Bozo that their totem is a bull whose horns stand for their pirogues and whose body is the river itself.
Q 16Which large aquatic mammal lives in the Niger River as far inland as the delta lakes of central Mali?
African manatee
The African manatee travels far up West Africa's rivers, and some have died in the turbines of hydroelectric dams on the Niger.
Q 17The Niger River's unusual route, which baffled geographers for two centuries, is often likened to which shape?
A boomerang
A boomerang fits because the river heads north-east from its source, bends on the desert's edge and then swings south-east to the ocean.
Q 18The Niger River's inland delta lies in which semi-arid belt that runs along the southern fringe of the desert?
Sahel
The Sahel is hot and dry for most of the year, yet the delta's flood draws hundreds of thousands of wintering ducks and waders.
Q 19Which starchy tuber, still a West African staple, was domesticated in the Niger River region?
Yam
Yam farming here long predates manioc, the cassava root that Portuguese traders brought to Africa from Brazil only in the 1500s.
Q 20Which West African empire of the 1400s and 1500s had its capital at Gao on the Niger River?
Songhai
Songhai power ended in 1591 at the Battle of Tondibi, where an invading force with gunpowder weapons routed a far larger army.
Q 24Which Moroccan traveller of the 1300s journeyed down the Niger River to Gao in a canoe carved from one tree?
Ibn Battuta
Ibn Battuta had already followed the river south-west to the capital of the Mali Empire before making the canoe trip downstream.
Q 25European traders of the 1800s named the Niger Delta's waterways after which product they shipped out in bulk?
Palm oil
Palm oil earned the delta the name Oil Rivers, and Britain declared an Oil Rivers Protectorate there in 1885.
Q 26Which Nigerian writer was hanged in 1995 after leading Ogoni protests over pollution in the Niger Delta?
Ken Saro-Wiwa
Ken Saro-Wiwa led a nonviolent campaign, and his execution got Nigeria suspended from the Commonwealth for more than three years.
Q 27Port Harcourt in the Niger Delta was named in 1913 after a politician holding which British office?
Colonial Secretary
Colonial Secretary Lewis Harcourt gave his name to the port, which had been built in 1912 and went a year without a name.
Q 28What happens to nearly two-thirds of the Niger River's potential flow as it crosses the inland delta in Mali?
Lost to evaporation and seepage
Lost to evaporation and seepage, about 31 cubic km of water vanishes in an average year, more than the tributary joining there adds.
Q 29The name Nigeria, drawn from the Niger River, was coined in 1897 by Flora Shaw, who worked as what?
Journalist
Journalist Flora Shaw was colonial editor of The Times, and in 1902 she married Frederick Lugard, who went on to govern the country.
Q 30Which naturalist from Captain Cook's first voyage led the African Association, formed to trace the Niger River?
Joseph Banks
Joseph Banks and a dozen titled Londoners founded the club, which also hoped to locate a fabled inland city of gold.