Landforms · Explainers
Why Is the Mediterranean Sea So Salty?
The Mediterranean is connected to the Atlantic, yet much of its water is saltier than the water arriving through Gibraltar. Its salinity reflects the combined effect of water…
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Explore the forms of Earth’s surface and how they develop.
Landforms · Explainers
The Mediterranean is connected to the Atlantic, yet much of its water is saltier than the water arriving through Gibraltar. Its salinity reflects the combined effect of water…
Countries & regions · Map guides
Where is the Congo River?The Congo River flows through Central Africa to the Atlantic Ocean. Its upper course is called the Lualaba; farther downstream it passes Kisangani, curves…
Argentina · Countries & regions · Map guides
Where does the Paraná River flow?The Paraná River begins where the Grande and Paranaíba meet in Brazil. It follows stretches of Brazil–Paraguay and Paraguay–Argentina border before continuing through…
Iraq · Countries & regions · Comparisons
Two rivers dominate the map of Mesopotamia, but their routes are often blurred together. The Tigris passes Baghdad; the Euphrates takes a longer western course through Syria. Their…
Colombia · Landforms · Map guides
Where does the Orinoco flow?The Orinoco River rises in southern Venezuela, curves along part of the Colombian border, and crosses Venezuela toward an Atlantic delta. Its tributaries connect…
Cambodia · Countries & regions · Map guides
Where is the Mekong River?The Mekong links the Tibetan Plateau with mainland Southeast Asia and the South China Sea. Its course runs through China, where it is called…
Angola · Countries & regions · Map guides
The Zambezi is not just the river at Victoria Falls. Its course links an upper-river loop through Angola, long border reaches, two major reservoirs and a delta on…
Landforms · Explainers
The Okavango Delta can be flooded when the surrounding country is in its dry season. That is not a contradiction: the rain feeding the river falls far upstream,…
Borders · Map guides
A city name can describe a skyline, a government area or a much wider region. Sarajevo makes that distinction especially important. Its river valley gives the urban landscape…
Lakes · Place guides
The Rhône links three very different landscapes: an Alpine valley, a large lake and a Mediterranean delta. Following the water through all three prevents a common map-reading mistake:…
Czechia · Cities & capitals · Map guides
The Elbe connects Czech mountain headwaters with a German tidal estuary, but its geography is easy to misread. Prague belongs to its wider river system without standing on…
Seine River · Landforms · Map guides
Paris is the Seine’s most familiar setting, but it is only one part of a much larger river system. Upstream lie the Burgundy headwaters and tributary valleys; downstream,…