The city of Omashu sits within a mountain range, surrounded on all sides by steep canyons and an enormous gorge, with the only way to its gates being a narrow path over the chasm. The cities' three gates are composed from massive stone, each five feet thick and towering over thirty feet high. As a result are accessible only by Earthbenders who guard its only entrance. It is ruled by King Sanra and holds the place of being the Earth Kingdom's second largest city. Omashu's main industry was producing weapons and supplies for the war effort, and had developed a complex and efficient mail system used to transport goods throughout the city that employed Earthbending and gravity using extensive ramps and chutes.
