fatness
Footballguy
Pretty cool map showing where rainfall (or other liquids) drain to on its way to the ocean. Unfortunately it ends at the US border, and it's not granular enough. But I've seen nothing like it. https://river-runner.samlearner.com/
Years ago when my sons were young I stopped the car at a high point in a city street about 3 blocks from our house. I told them if we got out and peed toward the back of the car it would drain to the Potomac River, and if we peed toward the front of the car it would drain to the Patapsco River, all of which was true. They both still think I was nuts stopping the car there (I was but it doesn't bother me) but hey, kids need to understand the world they walk on.
edited to add: here's the global version that doesn't stop at the US borders: https://river-runner-global.samlearner.com/
Years ago when my sons were young I stopped the car at a high point in a city street about 3 blocks from our house. I told them if we got out and peed toward the back of the car it would drain to the Potomac River, and if we peed toward the front of the car it would drain to the Patapsco River, all of which was true. They both still think I was nuts stopping the car there (I was but it doesn't bother me) but hey, kids need to understand the world they walk on.
edited to add: here's the global version that doesn't stop at the US borders: https://river-runner-global.samlearner.com/
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