The Congo River carves the deepest channel of any river on Earth - over 220 m at its deepest sounding. Toggle the depth marker to see how far that is below the surface, and the rapids that block ships from reaching the interior.
Published figures: length about 4,700 km; maximum sounded depth over 220 m; average discharge about 41,000 m3/s at the mouth; basin area about 4,000,000 km2; Livingstone Falls drops roughly 270 m over about 350 km before the Atlantic.
Drag to orbit and scroll or pinch to zoom. Everything renders on your device with WebGL.
Congo River 3D Explorer
This browser explorer traces the Congo River as one incised channel through equatorial rainforest - a winding groove cut through the terrain, never fanning into distributaries - with a yellow marker showing how far the deepest sounding, over 220 m, sits below the surface.
The Congo is the only major river that crosses the equator twice, so its two river-basin halves have offsetting rainy seasons and the combined flow stays unusually steady year-round - a rare trait among the world's great rivers. Near its mouth the river drops through the Livingstone Falls, roughly 350 km of rapids and cataracts losing about 270 m of elevation before reaching the Atlantic. Those falls are why no direct shipping route has ever connected the deep interior to the ocean, and why a rail line was built to bypass them instead.
- Toggle the deepest-point marker to see the 220 m+ sounding against the surface
- Toggle the rapids markers to see the Livingstone Falls stretch near the mouth
- Read length, depth, discharge, and basin-area figures in the panel
- Drag to orbit, scroll or pinch to zoom
- Runs fully in the browser with the vendored three.js engine - no account, no upload
| Figure | Published value |
|---|---|
| Length | about 4,700 km - Africa's second-longest river after the Nile |
| Maximum depth | over 220 m - the deepest river channel measured on Earth |
| Average discharge | about 41,000 m3/s at the mouth - second largest by volume worldwide, after the Amazon |
| Basin area | about 4,000,000 km2 - the world's second largest river basin |
| Equator crossings | the only major river crossing the equator twice, which keeps its flow unusually steady year-round |
| Livingstone Falls | about 350 km of rapids and cataracts dropping roughly 270 m before the Atlantic - unnavigable |
For a river that fans outward instead of cutting a single deep channel, open the Okavango Delta 3D Explorer, or compare against the flood-season plume of the Amazon River 3D Explorer.
The whole Congo River scene - the winding channel groove, the depth-color banding, the canopy decor, and the rapids markers near the mouth - is built and drawn on your own device with WebGL through the site-vendored three.js engine. Orbit the scene to follow the river's two big equatorial bends, and zoom toward the yellow marker to see how deep 220 m really reaches below the rainforest floor. Nothing about your visit is uploaded to a server, and the engine loads once (about 0.7 MB) and is then cached.
This is an educational approximation - the channel path, bend geometry, depth banding, and rapids placement are schematic teaching cues, not survey data.
Frequently Asked Questions
Why is the Congo River the deepest river on Earth?
Soundings near its lower course have measured over 220 m deep - deeper than any other river channel measured worldwide, likely carved by the strong, steady flow squeezed through a narrow bedrock gorge.
Why does the Congo River flow so steadily year-round?
It is the only major river that crosses the equator twice, so its northern and southern basin halves have offsetting rainy seasons - when one side is dry, the other is wet, which smooths out the combined flow.
Why can't ships sail from the Atlantic to the interior?
The Livingstone Falls, about 350 km of rapids and cataracts near the mouth, drop roughly 270 m in elevation. They are unnavigable, so a rail line bypasses them instead of a shipping channel.
How does the Congo River compare to the Amazon?
The Amazon carries more total water and is longer, but the Congo has the deeper channel and is the world's second largest river by both discharge and basin area.
Which countries does the Congo River run through?
It flows through the Democratic Republic of the Congo and the Republic of the Congo, forming much of their shared border, and passes between the capitals Kinshasa and Brazzaville.
Is this a scientific terrain model?
No. It is an educational explorer using published figures - the channel path, bend geometry, depth banding, and rapids placement are schematic teaching cues, not survey data.