75
global watershed map
(lemmy.world)
source: https://decolonialatlas.wordpress.com/2017/04/18/colorful-river-basin-maps/
It has more detailed maps for each continent too.
Why do they all run straight for hundreds of miles? None of the other deserts are like that.
It’s just more efficient to manage. We got to do a lot with very little.
It's the predominant direction of the wind.