The Lukuga -- #40 on the list. I suspect there is an error in the data. The project lists the Lukuga River as being 1904 km long. But Wikipedia[1] only has 320

The Lukuga -- #40 on the list. I suspect there is an error in the data. The project lists the Lukuga River as being 1904 km long. But Wikipedia[1] only has 320 km, which would give it a much more ordinary sinuosity of 1.27. For a river that might actually have a very high sinuosity, take a look at the Fraser River -- #20 on the list, with sinuosity listed as 5.12. [1] https://en.wikipedia.org/wiki/Lukuga_River https://en.wikipedia.org/wiki/Lukuga_River