One of prominent geographical structure in the city is the Kitanglad Mountain Range, located in the western frontier, on its border with Lantapan and Impasugong. Some barangays (Dalwangan, Capitan Bayong, Imbayao and Mampayag) are in the foothills of this mountain range. Steep hills are found in the central portion of the city (Kibalabag, Manalog and Can-ayan), where the Tagoloan River headwater can be found. The Central Mindanao Cordillera (Pantaron Mountain Range), is on the eastern side of the city, in its boundaries with Agusan del Sur province. The Pulangi River cuts across the area between the hills in the central part and the Central Cordillera in the eastern part, creating a portion of the Upper Pulangi river valley. The southern portion of the city is made up of level to undulating area, a river valley created by the Sawaga River and the Manupali River, which are both tributaries of the Pulangi River.