Fuga
A mining city that was located at the very center of the Sangmyung Valley. Built around a massive sinkhole known as Mong's Bore, Fuga's primary industry was mining. Everyday, workers of Fuga would drop down the sides of the hole, connected to nothing but a rope, and armed with tools to try and dig metal ores from the exposed earth. It was dangerous business, as the Slingwhip-fed waterfall roared down the hole, providing an ever-present threat for the miners.
Cross-Sectional Diagram of Fuga