It seems to be missing some smaller rivers in the UK, where I live we have both the River Welland and River Gwash (technically a tributary to the River Welland)

It seems to be missing some smaller rivers in the UK, where I live we have both the River Welland and River Gwash (technically a tributary to the River Welland), it completely misses the Gwash and always routs with the Welland (sometimes miles away) even if you click on it. It's quite interesting as the River Gwash both feeds and runs out of the Rutland Water which is the largest reservoir in England. Even if you click on Rutland Water the rout jumps about 10 mile to the south to the River Welland. https://en.wikipedia.org/wiki/Rutland_Water https://en.wikipedia.org/wiki/Rutland_Water https://en.wikipedia.org/wiki/River_Gwash https://en.wikipedia.org/wiki/River_Gwash