Enchant land When Spreading Seas enters the battlefield, draw a card. Enchanted land is an Island.
Most inhabitants of Zendikar have given up on the idea of an accurate map.
Official Rulings for Spreading Seas
10/1/2009 : The enchanted land loses its existing land types and any abilities printed on it. It now has the land type Island and has the ability to tap to add to its controller's mana pool. Spreading Seas doesn't change the enchanted land's name or whether it's legendary, basic, or snow.