While doing my analysis I noticed that the map is similar to that of the Ocarina Of Time and Twilight Princess maps as well as some others.
Zora's DomainThis place is not only the home of the Zora's but also the source of most of Hyrule's water. I've seen some people put it on Snow Peak or up by Death Mountain, but in both OOT and TP Zora's Domain was at neither of these locations and actually between the 2 mountains as you actually go quite away from those mountains in those video games.
I also took notice in the Other Zelda games that the rivers from Zora's Domain actually go underground at some points and that the entire river cannot be seen from above. You see this in Twilight Princess and not so much in Ocarina of Time but Zora's Domain was underground.