The northern part is quite cold and artic. Sekto Springs Dam is located here, draining the Mongo River, but leaving a smaller river in the valley. Further south, the climate becomes more temperate. This is the place in the Mongo Valley that is most abundunt in wildlife. New Yolk City is located here. The most southern part of the valley is a large desert, where the Mongo River is little more than a trickle due to the Sekto Springs Dam reducing the river's flow.