If someone touches it they instantly turn to sand. It is surrounded on all four sides by a desert. These surround the Emerald City in the center.
There is also a fifth nation in the Northwest, Ugabu. Roughly rectangular in shape, Oz is divided along the diagonals into four countries: Munchkin Country in the East, Quadling Country in the South, Winkie Country in the West, and Gillikin Country in the North.
