The World’s Narrowest River Is Only a Few Centimeters Wide

The Hualai River, in China, is apparently the narrowest river in the world, measuring only a few dozen centimeters at its widest point.

At its widest point, the Amazon is more than 6 miles wide during the dry season, and a whopping 24 miles wide during the wet season. It’s by far the widest river in the world, but although there are plenty of other rivers at least a mile-wide at their widest point, width is not a defining characteristic of a river. In fact, there’s actually a river in China so narrow that you can easily step over it. Hualai River, on the Inner Mongolia Plateau in north China, is over 17-kilometers-long but has an average width of just 15 centimeters. At its narrowest, it is just 4-cm-wide.

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