Physical setting
Coastal country
geographic context
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Geography & Environment
Geography & Environment in Mauritania
NouakchottLocal time
Geography & Environment
Mauritania is a predominantly Saharan country of desert plains, plateaus and isolated massifs, grading southward toward the Sahel and the Senegal River valley.
Relief anchor
Saharan plateaus, massifs and Atlantic lowlands
regional relief reference
Mauritania at a Glance
Mauritania is a predominantly Saharan country of desert plains, plateaus and isolated massifs, grading southward toward the Sahel and the Senegal River valley.
Physical geography
terrain · drainage · setting
Mauritania is largely Saharan, with broad desert plains and plateaus, isolated rocky massifs and escarpments, and lower sandy terrain along the Atlantic coast and Senegal River valley. The relief focus used here is Saharan plateaus, massifs and Atlantic lowlands, presented as a regional physical reference.
Regional frameWestern Africa
SettingCoastal country
Relief focusSaharan plateaus, massifs and Atlantic lowlands
Climate pattern
The climate is predominantly hot and arid, with Saharan conditions across most of the country and a more seasonal Sahelian rainfall regime toward the south.
Water and landform context
Permanent surface water is scarce outside the Senegal River along the southwest, while wadis and temporary pools respond to episodic rainfall elsewhere.
Terrain, Climate and Environment
Three connected views of Mauritania's physical setting.
Relief and terrain
PhysicalMauritania is largely Saharan, with broad desert plains and plateaus, isolated rocky massifs and escarpments, and lower sandy terrain along the Atlantic coast and Senegal River valley. The relief reference on this page is Saharan plateaus, massifs and Atlantic lowlands.
Climate pattern
ClimateThe climate is predominantly hot and arid, with Saharan conditions across most of the country and a more seasonal Sahelian rainfall regime toward the south.
Environmental setting
EnvironmentPermanent surface water is scarce outside the Senegal River along the southwest, while wadis and temporary pools respond to episodic rainfall elsewhere.
Understand the landscape
What Mauritania's geographic profile is telling you
Extreme aridity limits permanent drainage across most of Mauritania, making the Senegal River and the wetter southern transition zone especially important within an otherwise desert landscape.
Detailed Geography & Environment Data
| Measure | Reference | Basis |
|---|---|---|
| Physical setting | Coastal country | Geographic classification |
| Relief anchor | Saharan plateaus, massifs and Atlantic lowlands | Regional physical feature |
| Climate | The climate is predominantly hot and arid, with Saharan conditions across most of the country and a more seasonal Sahelian rainfall regime toward the south. | |
| Terrain | Mauritania is largely Saharan, with broad desert plains and plateaus, isolated rocky massifs and escarpments, and lower sandy terrain along the Atlantic coast and Senegal River valley. | |
Frequently Asked Questions
What kind of terrain does Mauritania have?
At country scale, the main terrain pattern is: mauritania is largely Saharan, with broad desert plains and plateaus, isolated rocky massifs and escarpments, and lower sandy terrain along the Atlantic coast and Senegal River valley.
What is Mauritania's climate like?
The climate is predominantly hot and arid, with Saharan conditions across most of the country and a more seasonal Sahelian rainfall regime toward the south.
What physical feature helps explain the landscape?
A useful way to read the landscape is through the relationship between relief and drainage. Permanent surface water is scarce outside the Senegal River along the southwest, while wadis and temporary pools respond to episodic rainfall elsewhere.
Sources & methodology
This physical-geography profile uses Mauritania Fourth National Communication to the UNFCCC (2019) to support the terrain, climate, drainage and regional relief descriptions shown on this page. The summary focuses on broad, stable physical features.
View sources used for this page
Mauritania Fourth National Communication to the UNFCCC (2019)
Country-authored institutional source used for the physical-geography claims on this page.