» Wed Jun 13, 2012 8:25 pm
Outer space is sprinkled with liberal amounts of water, in droplet form generally, and it wanders around our solar system. Some of it enters atmosphere, and adds continuously to the amount of water on our planet. Clearly, the Dwemer built their GPS system which drives our in-game maps, so there is at least one satellite in geosynchronous orbit above Skyrim. Now... the Dwemer satellite is collecting water in orbit, and transmitting it into that hill, using steam technology which is beyond our feeble 21st century minds. The Skyforge was originally a heat sync for the energy source used to power the satellite and delivery system, to prevent boiling and water loss to steam evaporation. You'll notice that Whiterun is pretty much in the center of the map, which would make sense. A little exploration will most likely reveal an underground facility called DASA (Dwemer Aeronautics and Space Administration,) which served as the HQ for the operation.
Of course, it's also possible that Bethesda didn't consider any of this, and thought it would be cool to have a lot of water in Whiterun. Yeah, I'm going with number two.