Mali vs. Mauritania

Transportation

	Mali	Mauritania
Railways	total: 593 km (2014) narrow gauge: 593 km 1.000-m gauge (2014)	total: 728 km (2014) standard gauge: 728 km 1.435-m gauge (2014)
Roadways	total: 139,107 km (2018)	total: 12,253 km (2018) paved: 3,988 km (2018) unpaved: 8,265 km (2018)
Waterways	1,800 km (downstream of Koulikoro; low water levels on the River Niger cause problems in dry years; in the months before the rainy season the river is not navigable by commercial vessels) (2011)	(some navigation possible on the Senegal River) (2011)
Ports and terminals	river port(s): Koulikoro (Niger)	major seaport(s): Nouadhibou, Nouakchott
Airports	total: 25 (2013)	total: 30 (2013)
Airports - with paved runways	total: 8 (2019) over 3,047 m: 1 2,438 to 3,047 m: 4 1,524 to 2,437 m: 2 914 to 1,523 m: 1	total: 9 (2017) 2,438 to 3,047 m: 5 (2017) 1,524 to 2,437 m: 4 (2017)
Airports - with unpaved runways	total: 17 (2013) 1,524 to 2,437 m: 3 (2013) 914 to 1,523 m: 9 (2013) under 914 m: 5 (2013)	total: 21 (2013) 2,438 to 3,047 m: 1 (2013) 1,524 to 2,437 m: 10 (2013) 914 to 1,523 m: 8 (2013) under 914 m: 2 (2013)
National air transport system	number of registered air carriers: 0 (2020)	number of registered air carriers: 1 (2020) inventory of registered aircraft operated by air carriers: 6 annual passenger traffic on registered air carriers: 454,435 (2018)
Civil aircraft registration country code prefix	TZ, TT	5T

Source: CIA Factbook