Mauritania (2001) | Senegal (2001) | |
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Administrative divisions | 12 regions (regions, singular - region) and 1 capital district*; Adrar, Assaba, Brakna, Dakhlet Nouadhibou, Gorgol, Guidimaka, Hodh Ech Chargui, Hodh El Gharbi, Inchiri, Nouakchott*, Tagant, Tiris Zemmour, Trarza | 10 regions (regions, singular - region); Dakar, Diourbel, Fatick, Kaolack, Kolda, Louga, Saint-Louis, Tambacounda, Thies, Ziguinchor |
Age structure | 0-14 years:
46.14% (male 634,940; female 632,654) 15-64 years: 51.59% (male 698,433; female 718,883) 65 years and over: 2.27% (male 25,840; female 36,562) (2001 est.) |
0-14 years:
44.07% (male 2,279,996; female 2,252,255) 15-64 years: 52.88% (male 2,603,829; female 2,834,328) 65 years and over: 3.05% (male 155,877; female 158,644) (2001 est.) |
Agriculture - products | dates, millet, sorghum, rice, corn, dates; cattle, sheep | peanuts, millet, corn, sorghum, rice, cotton, tomatoes, green vegetables; cattle, poultry, pigs; fish |
Airports | 26 (2000 est.) | 20 (2000 est.) |
Airports - with paved runways | total:
8 2,438 to 3,047 m: 3 1,524 to 2,437 m: 5 (2000 est.) |
total:
10 over 3,047 m: 1 1,524 to 2,437 m: 7 914 to 1,523 m: 2 (2000 est.) |
Airports - with unpaved runways | total:
18 2,438 to 3,047 m: 2 1,524 to 2,437 m: 4 914 to 1,523 m: 9 under 914 m: 3 (2000 est.) |
total:
10 1,524 to 2,437 m: 5 914 to 1,523 m: 4 under 914 m: 1 (2000 est.) |
Area | total:
1,030,700 sq km land: 1,030,400 sq km water: 300 sq km |
total:
196,190 sq km land: 192,000 sq km water: 4,190 sq km |
Area - comparative | slightly larger than three times the size of New Mexico | slightly smaller than South Dakota |
Background | Independent from France in 1960, Mauritania annexed the southern third of the former Spanish Sahara (now Western Sahara) in 1976, but relinquished it after three years of raids by the Polisario guerrilla front seeking independence for the territory. Opposition parties were legalized and a new constitution approved in 1991. Two multiparty presidential elections since then were widely seen as being flawed; Mauritania remains, in reality, a one-party state. The country continues to experience ethnic tensions between its black minority population and the dominant Maur (Arab-Berber) populace. | Independent from France in 1960, Senegal joined with The Gambia to form the nominal confederation of Senegambia in 1982. However, the envisaged integration of the two countries was never carried out, and the union was dissolved in 1989. Despite peace talks, a southern separatist group sporadically has clashed with government forces since 1982. Senegal has a long history of participating in international peacekeeping. |
Birth rate | 42.95 births/1,000 population (2001 est.) | 37.46 births/1,000 population (2001 est.) |
Budget | revenues:
$329 million expenditures: $265 million, including capital expenditures of $75 million (1996 est.) |
revenues:
$885 million expenditures: $885 million, including capital expenditures of $125 million (1996 est.) |
Capital | Nouakchott | Dakar |
Climate | desert; constantly hot, dry, dusty | tropical; hot, humid; rainy season (May to November) has strong southeast winds; dry season (December to April) dominated by hot, dry, harmattan wind |
Coastline | 754 km | 531 km |
Constitution | 12 July 1991 | 3 March 1963, revised 1991 |
Country name | conventional long form:
Islamic Republic of Mauritania conventional short form: Mauritania local long form: Al Jumhuriyah al Islamiyah al Muritaniyah local short form: Muritaniyah |
conventional long form:
Republic of Senegal conventional short form: Senegal local long form: Republique du Senegal local short form: Senegal |
Currency | ouguiya (MRO) | Communaute Financiere Africaine franc (XOF); note - responsible authority is the Central Bank of the West African States |
Death rate | 13.65 deaths/1,000 population (2001 est.) | 8.35 deaths/1,000 population (2001 est.) |
Debt - external | $2.1 billion (1999) | $4.1 billion (1998 est.) |
Diplomatic representation from the US | chief of mission:
Ambassador John W. LIMBERT embassy: Rue Abdallaye, Nouakchott mailing address: B. P. 222, Nouakchott telephone: [222] 25-26-60, 25-26-63 FAX: [222] 25-15-92 |
chief of mission:
Ambassador Harriet L. ELAM-THOMAS embassy: Avenue Jean XXIII at the corner of Rue Kleber, Dakar mailing address: B. P. 49, Dakar telephone: [221] 823-4296, 823-7384 FAX: [221] 822-2991 |
Diplomatic representation in the US | chief of mission:
Ambassador Ahmed Ben Khalifa BEN JIDOU chancery: 2129 Leroy Place NW, Washington, DC 20008 telephone: [1] (202) 232-5700 FAX: [1] (202) 319-2623 |
chief of mission:
Ambassador Mamadou Mansour SECK chancery: 2112 Wyoming Avenue NW, Washington, DC 20008 telephone: [1] (202) 234-0540 |
Disputes - international | none | none |
Economic aid - recipient | $300 million (1998) | $647.5 million (1995) |
Economy - overview | A majority of the population still depends on agriculture and livestock for a livelihood, even though most of the nomads and many subsistence farmers were forced into the cities by recurrent droughts in the 1970s and 1980s. Mauritania has extensive deposits of iron ore, which account for half of total exports. The decline in world demand for this ore, however, has led to cutbacks in production. The nation's coastal waters are among the richest fishing areas in the world, but overexploitation by foreigners threatens this key source of revenue. The country's first deepwater port opened near Nouakchott in 1986. In the past, drought and economic mismanagement have resulted in a buildup of foreign debt. In March 1999, the government signed an agreement with a joint World Bank-IMF mission on a $54 million enhanced structural adjustment facility (ESAF). Mauritania withdrew its membership in the Economic Community of West African States (ECOWAS) in 2000. Privatization and debt relief are in full swing, and the rate of economic growth appears to be accelerating, especially in the construction, telecommunication, and information sectors. Diamonds and petroleum are beginning to be explored and exploited. | In January 1994, Senegal undertook a bold and ambitious economic reform program with the support of the international donor community. This reform began with a 50% devaluation of Senegal's currency, the CFA franc, which is linked at a fixed rate to the French franc. Government price controls and subsidies have been steadily dismantled. After seeing its economy contract by 2.1% in 1993, Senegal made an important turnaround, thanks to the reform program, with real growth in GDP averaging 5% annually in 1995-99. Annual inflation has been pushed down to 2%, and the fiscal deficit has been cut to less than 1.5% of GDP. Investment rose steadily from 13.8% of GDP in 1993 to 16.5% in 1997. As a member of the West African Economic and Monetary Union (UEMOA), Senegal is working toward greater regional integration with a unified external tariff. Senegal also realized full Internet connectivity in 1996, creating a miniboom in information technology-based services. Private activity now accounts for 82% of GDP. On the negative side, Senegal faces deep-seated urban problems of chronic unemployment, juvenile delinquency, and drug addiction. Real GDP growth is expected to rise above 6%, while inflation is likely to hold at 2% in 2001-02. |
Electricity - consumption | 140.4 million kWh (1999) | 1.181 billion kWh (1999) |
Electricity - exports | 0 kWh (1999) | 0 kWh (1999) |
Electricity - imports | 0 kWh (1999) | 0 kWh (1999) |
Electricity - production | 151 million kWh (1999) | 1.27 billion kWh (1999) |
Electricity - production by source | fossil fuel:
82.78% hydro: 17.22% nuclear: 0% other: 0% (1999) |
fossil fuel:
100% hydro: 0% nuclear: 0% other: 0% (1999) |
Elevation extremes | lowest point:
Sebkha de Ndrhamcha -3 m highest point: Kediet Ijill 910 m |
lowest point:
Atlantic Ocean 0 m highest point: unnamed feature near Nepen Diakha 581 m |
Environment - current issues | overgrazing, deforestation, and soil erosion aggravated by drought are contributing to desertification; very limited natural fresh water resources away from the Senegal which is the only perennial river | wildlife populations threatened by poaching; deforestation; overgrazing; soil erosion; desertification; overfishing |
Environment - international agreements | party to:
Biodiversity, Climate Change, Desertification, Endangered Species, Hazardous Wastes, Law of the Sea, Nuclear Test Ban, Ozone Layer Protection, Ship Pollution, Wetlands signed, but not ratified: none of the selected agreements |
party to:
Biodiversity, Climate Change, Desertification, Endangered Species, Hazardous Wastes, Law of the Sea, Marine Life Conservation, Nuclear Test Ban, Ozone Layer Protection, Ship Pollution, Wetlands, Whaling signed, but not ratified: Marine Dumping |
Ethnic groups | mixed Maur/black 40%, Maur 30%, black 30% | Wolof 43.3%, Pular 23.8%, Serer 14.7%, Jola 3.7%, Mandinka 3%, Soninke 1.1%, European and Lebanese 1%, other 9.4% |
Exchange rates | ouguiyas per US dollar - 250.870 (December 2000), 238.923 (2000), 209.514 (1999), 188.476 (1998), 151.853 (1997), 137.222 (1996) | Communaute Financiere Africaine francs (XOF) per US dollar - 699.21 (January 2001), 711.98 (2000), 615.70 (1999), 589.95 (1998), 583.67 (1997), 511.55 (1966); note - from 1 January 1999, the XOF is pegged to the euro at a rate of 655.957 XOF per euro |
Executive branch | chief of state:
President Col. Maaouya Ould Sid Ahmed TAYA (since 12 December 1984) head of government: Prime Minister Cheik El Avia Ould Mohamed KHOUNA (since 17 November 1998) cabinet: Council of Ministers elections: president elected by popular vote for a six-year term; election last held 12 December 1997 (next to be held NA December 2003); prime minister appointed by the president election results: President Col. Maaouya Ould Sid Ahmed TAYA reelected with 90.9% of the vote |
chief of state:
President Abdoulaye WADE (since 1 April 2000) head of government: Prime Minister Madior BOYE (since 3 March 2001) cabinet: Council of Ministers appointed by the prime minister in consultation with the president elections: president elected by popular vote for a seven-year term; election last held 27 February and 19 March 2000 (next to be held 27 February 2007); prime minister appointed by the president election results: Abdoulaye WADE elected president; percent of vote in the second round of voting - Abdoulaye WADE (PDS) 58.49%, Abdou DIOUF (PS) 41.51% |
Exports | $333 million (f.o.b., 1999) | $959 million (f.o.b., 2000) |
Exports - commodities | iron ore, fish and fish products, gold | fish, ground nuts (peanuts), petroleum products, phosphates, cotton |
Exports - partners | Japan 18%, France 17%, Italy 16%, Spain 11% (1998) | France 17%, India 17%, Italy 12%, Spain 6%, Mali 6%, Cote d'Ivoire 4% (1999) |
Fiscal year | calendar year | calendar year |
Flag description | green with a yellow five-pointed star above a yellow, horizontal crescent; the closed side of the crescent is down; the crescent, star, and color green are traditional symbols of Islam | three equal vertical bands of green (hoist side), yellow, and red with a small green five-pointed star centered in the yellow band; uses the popular pan-African colors of Ethiopia |
GDP | purchasing power parity - $5.4 billion (2000 est.) | purchasing power parity - $16 billion (2000 est.) |
GDP - composition by sector | agriculture:
25% industry: 31% services: 44% (1997) |
agriculture:
19% industry: 20% services: 61% (1997 est.) |
GDP - per capita | purchasing power parity - $2,000 (2000 est.) | purchasing power parity - $1,600 (2000 est.) |
GDP - real growth rate | 5% (2000 est.) | 5.7% (2000 est.) |
Geographic coordinates | 20 00 N, 12 00 W | 14 00 N, 14 00 W |
Geography - note | most of the population concentrated in the cities of Nouakchott and Nouadhibou and along the Senegal River in the southern part of the country | The Gambia is almost an enclave of Senegal |
Highways | total:
7,660 km paved: 866 km unpaved: 6,794 km (1996) |
total:
14,576 km paved: 4,271 km unpaved: 10,305 km (1996) |
Household income or consumption by percentage share | lowest 10%:
2.3% highest 10%: 29.9% (1995) |
lowest 10%:
1.4% highest 10%: 42.8% (1991) |
Illicit drugs | - | transshipment point for Southwest and Southeast Asian heroin moving to Europe and North America; illicit cultivator of cannabis |
Imports | $305 million (f.o.b., 1999) | $1.3 billion (f.o.b., 2000) |
Imports - commodities | machinery and equipment, petroleum products, capital goods, foodstuffs, consumer goods | foods and beverages, consumer goods, capital goods, petroleum products |
Imports - partners | France 27%, Benelux 9%, Germany 7%, Spain 7% (1998) | France 30%, Nigeria 7%, Italy 6%, Thailand 5%, Germany 4%, US 4% (1999) |
Independence | 28 November 1960 (from France) | 4 April 1960 (from France); complete independence was achieved upon dissolution of federation with Mali on 20 August 1960 |
Industrial production growth rate | 2.2% (1999) | 7% (1998 est.) |
Industries | fish processing, mining of iron ore and gypsum | agricultural and fish processing, phosphate mining, fertilizer production, petroleum refining, construction materials |
Infant mortality rate | 76.7 deaths/1,000 live births (2001 est.) | 56.75 deaths/1,000 live births (2001 est.) |
Inflation rate (consumer prices) | 4.5% (2000 est.) | 1.5% (2000 est.) |
International organization participation | ABEDA, ACCT (associate), ACP, AfDB, AFESD, AL, AMF, AMU, CAEU, CCC, ECA, ECOWAS, FAO, G-77, IBRD, ICAO, ICFTU, ICRM, IDA, IDB, IFAD, IFC, IFRCS, IHO (pending member), ILO, IMF, IMO, Intelsat, Interpol, IOC, ITU, NAM, OAU, OIC, OPCW, UN, UNCTAD, UNESCO, UNIDO, UPU, WCL, WHO, WIPO, WMO, WToO, WTrO | ACCT, ACP, AfDB, CCC, ECA, ECOWAS, FAO, FZ, G-15, G-77, IAEA, IBRD, ICAO, ICC, ICFTU, ICRM, IDA, IDB, IFAD, IFC, IFRCS, ILO, IMF, IMO, Inmarsat, Intelsat, Interpol, IOC, IOM, ITU, MINURSO, MIPONUH, MONUC, NAM, OAU, OIC, OPCW, PCA, UN, UNCTAD, UNESCO, UNIDO, UNIKOM, UNMIBH, UNMIK, UNTAET, UPU, WADB, WAEMU, WCL, WFTU, WHO, WIPO, WMO, WToO, WTrO |
Internet Service Providers (ISPs) | 5 (2000) | 1 (2000) |
Irrigated land | 490 sq km (1993 est.) | 710 sq km (1993 est.) |
Judicial branch | Supreme Court or Cour Supreme; Court of Appeals; lower courts | Constitutional Court; Council of State; Court of Final Appeals or Cour de Cassation; Court of Appeals; note-the judicial system was reformed in 1992 |
Labor force | 750,000 (1999) | NA |
Labor force - by occupation | agriculture 47%, services 39%, industry 14% | agriculture 60% |
Land boundaries | total:
5,074 km border countries: Algeria 463 km, Mali 2,237 km, Senegal 813 km, Western Sahara 1,561 km |
total:
2,640 km border countries: The Gambia 740 km, Guinea 330 km, Guinea-Bissau 338 km, Mali 419 km, Mauritania 813 km |
Land use | arable land:
0% permanent crops: 0% permanent pastures: 38% forests and woodland: 4% other: 58% (1993 est.) |
arable land:
12% permanent crops: 0% permanent pastures: 16% forests and woodland: 54% other: 18% (1993 est.) |
Languages | Hasaniya Arabic (official), Pular, Soninke, Wolof (official), French | French (official), Wolof, Pulaar, Jola, Mandinka |
Legal system | a combination of Shari'a (Islamic law) and French civil law | based on French civil law system; judicial review of legislative acts in Constitutional Court; the Council of State audits the government's accounting office; has not accepted compulsory ICJ jurisdiction |
Legislative branch | bicameral legislature consists of the Senate or Majlis al-Shuyukh (56 seats; 17 up for election every two years; members elected by municipal leaders to serve six-year terms) and the National Assembly or Majlis al-Watani (79 seats; members elected by popular vote to serve five-year terms)
elections: Senate - last held 17 April 1998 (next to be held NA 2001); National Assembly - last held 11 and 18 October 1996 (next to be held NA 2001) election results: Senate - percent of vote by party - NA%; seats by party - NA; National Assembly - percent of vote by party - NA%; seats by party - PRDS 71, AC 1, independents and other 7 |
unicameral National Assembly or Assemblee Nationale (120 seats; members are elected by direct popular vote to serve five-year terms)
note: the former National Assembly, dissolved in the spring of 2001, had 140 seats elections: last held 29 April 2001 (next to be held NA 2006) election results: percent of vote by party - NA%; seats by party - SOPI Coalition 89, AFP 11, PS 10, other 10 |
Life expectancy at birth | total population:
51.14 years male: 49.06 years female: 53.29 years (2001 est.) |
total population:
62.56 years male: 60.94 years female: 64.22 years (2001 est.) |
Literacy | definition:
age 15 and over can read and write total population: 46.7% male: 53.4% female: 40% (1998 est.) |
definition:
age 15 and over can read and write total population: 33.1% male: 43% female: 23.2% (1995 est.) |
Location | Northern Africa, bordering the North Atlantic Ocean, between Senegal and Western Sahara | Western Africa, bordering the North Atlantic Ocean, between Guinea-Bissau and Mauritania |
Map references | Africa | Africa |
Maritime claims | contiguous zone:
24 NM continental shelf: 200 NM or to the edge of the continental margin exclusive economic zone: 200 NM territorial sea: 12 NM |
contiguous zone:
24 NM continental shelf: 200 NM or to the edge of the continental margin exclusive economic zone: 200 NM territorial sea: 12 NM |
Merchant marine | none (2000 est.) | - |
Military branches | Army, Navy, Air Force, National Gendarmerie, National Guard, National Police, Presidential Guard | Army, Navy, Air Force, National Gendarmerie, National Police (Surete Nationale) |
Military expenditures - dollar figure | $41 million (FY97/98) | $68 million (FY97) |
Military expenditures - percent of GDP | 2.7% (FY97/98) | 1.4% (FY97) |
Military manpower - availability | males age 15-49:
624,375 (2001 est.) |
males age 15-49:
2,311,063 (2001 est.) |
Military manpower - fit for military service | males age 15-49:
302,699 (2001 est.) |
males age 15-49:
1,207,360 (2001 est.) |
Military manpower - military age | - | 18 years of age |
Military manpower - reaching military age annually | - | males:
114,189 (2001 est.) |
National holiday | Independence Day, 28 November (1960) | Independence Day, 4 April (1960) |
Nationality | noun:
Mauritanian(s) adjective: Mauritanian |
noun:
Senegalese (singular and plural) adjective: Senegalese |
Natural hazards | hot, dry, dust/sand-laden sirocco wind blows primarily in March and April; periodic droughts | lowlands seasonally flooded; periodic droughts |
Natural resources | iron ore, gypsum, fish, copper, phosphate, diamonds, gold | fish, phosphates, iron ore |
Net migration rate | 0 migrant(s)/1,000 population (2001 est.) | 0.21 migrant(s)/1,000 population (2001 est.) |
Political parties and leaders | Action for Change or AC [Messoud Ould BOULKHEIR]; Assembly for Democracy and Unity or RDU [Ahmed Ould SIDI BABA]; Democratic and Social Republican Party or PRDS (ruling party) [President Col. Maaouya Ould Sid Ahmed TAYA]; Mauritanian Party for Renewal and Concorde or PMRC [Molaye El Hassen Ould JIYID]; National Union for Democracy and Development or UNDD [Tidjane KOITA]; Party for Liberty, Equality and Justice or PLEJ [Daouda M'BAGNIGA]; Popular Front or FP [Ch'bih Ould CHEIKH MALAININE]; Popular Progress Alliance or APP [Mohamed El Hafed Ould ISMAEL]; Popular Social and Democratic Union or UPSD [Mohamed Mahmoud Ould MAH]; Progress Force Union or UFP [Mohamed Ould MOLOUD]; Union for Progress and Democracy or UNDD [Naha Mint MOUKNASS]
note: parties legalized by constitution ratified 12 July 1991; however, politics continue to be tribally based |
African Party for Democracy and Socialism or And Jef (also known as PADS/AJ) [Landing SAVANE, secretary general]; African Party of Independence [Majhemout DIOP]; Alliance of Forces of Progress or AFP [Moustapha NIASSE]; Democratic and Patriotic Convention or CDP (also known as Garab-Gi) [Dr. Iba Der THIAM]; Democratic League-Labor Party Movement or LD-MPT [Dr. Abdoulaye BATHILY]; Front for Socialism and Democracy or FSD [Cheikh Abdoulaye DIEYE]; Gainde Centrist Bloc or BGC [Jean-Paul DIAS]; Independence and Labor Party or PIT [Amath DANSOKHO]; National Democratic Rally or RND [Madier DIOUF]; Senegalese Democratic Party or PDS [Abdoulaye WADE]; Senegalese Democratic Party-Renewal or PDS-R [Serigne Lamine DIOP, secretary general]; Senegalese Democratic Union-Renewal or UDS-R [Mamadou Puritain FALL]; Socialist Party or PS [President Abdou DIOUF]; SOPI Coalition (a 40-party coalition led by the PDS) [Abdoulaye WADE]; Union for Democratic Renewal or URD [Djibo Leyti KA]; other small parties |
Political pressure groups and leaders | Arab nationalists; Ba'athists; General Confederation of Mauritanian Workers or CGTM [Abdallahi Ould MOHAMED, secretary general]; Independent Confederation of Mauritanian Workers or CLTM [Samory Ould BEYE]; Islamists; Mauritanian Workers Union or UTM [Mohamed Ely Ould BRAHIM, secretary general] | labor; Muslim brotherhoods; students; teachers |
Population | 2,747,312 (July 2001 est.) | 10,284,929 (July 2001 est.) |
Population below poverty line | 50% (1996 est.) | NA% |
Population growth rate | 2.93% (2001 est.) | 2.93% (2001 est.) |
Ports and harbors | Bogue, Kaedi, Nouadhibou, Nouakchott, Rosso | Dakar, Kaolack, Matam, Podor, Richard Toll, Saint-Louis, Ziguinchor |
Radio broadcast stations | AM 1, FM 2, shortwave 1 (1998) | AM 10, FM 14, shortwave 0 (1998) |
Radios | 360,000 (1997) | 1.24 million (1997) |
Railways | total:
750 km (single track); note - owned and operated by government mining company standard gauge: 750 km 1.435-m gauge (1995) |
total:
906 km narrow gauge: 906 km 1.000-meter gauge (70 km double track) |
Religions | Muslim 100% | Muslim 92%, indigenous beliefs 6%, Christian 2% (mostly Roman Catholic) |
Sex ratio | at birth:
1.03 male(s)/female under 15 years: 1 male(s)/female 15-64 years: 0.97 male(s)/female 65 years and over: 0.71 male(s)/female total population: 0.98 male(s)/female (2001 est.) |
at birth:
1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 0.92 male(s)/female 65 years and over: 0.98 male(s)/female total population: 0.96 male(s)/female (2001 est.) |
Suffrage | 18 years of age; universal | 18 years of age; universal |
Telephone system | general assessment:
limited system of cable and open-wire lines, minor microwave radio relay links, and radiotelephone communications stations (improvements being made) domestic: mostly cable and open-wire lines; a recently completed domestic satellite telecommunications system links Nouakchott with regional capitals international: satellite earth stations - 1 Intelsat (Atlantic Ocean) and 2 Arabsat |
general assessment:
good system domestic: above-average urban system; microwave radio relay, coaxial cable and fiber-optic cable in trunk system international: 4 submarine cables; satellite earth station - 1 Intelsat (Atlantic Ocean) |
Telephones - main lines in use | 26,000 (2000) | 116,000 (1997) |
Telephones - mobile cellular | NA | 1,149 (1996) |
Television broadcast stations | 1 (1997) | 1 (1997) |
Terrain | mostly barren, flat plains of the Sahara; some central hills | generally low, rolling, plains rising to foothills in southeast |
Total fertility rate | 6.22 children born/woman (2001 est.) | 5.12 children born/woman (2001 est.) |
Unemployment rate | 23% (1995 est.) | NA%; urban youth 40% |
Waterways | note:
ferry traffic on the Senegal River |
897 km
note: 785 km on the Senegal river, and 112 km on the Saloum river |