“Natural Waterways” on WaterwayMap.org got smarter. 🚀 It now connects river that flow through canal locks. This is very noticeable in North America 🌎, where the calculated Mississippi River water basin (blue) has gained a few more water basins (pink).
I've added a new feature to WaterwayMap.org: Loop/cycle detection!
It shows all places where waterways (e.g. rivers) form a loop, and go around in a circle. Most of these are simple tagging mistakes. Please get mapping!