Namal Lake is located in Rikhi, a village on one corner of the Namal valley in Mianwali, Punjab, Pakistan. It was formed following the construction of Namal Dam in 1913. Namal Dam is situated some 32 km from Mianwali city. The lake has a surface area of 5.5 km². There are mountains on its western and southern sides. On the other two sides are agricultural areas. Nammal (Namal) Lake is a place of interest for the hikers and holiday-makers in Chakrala.
Amongst fine views should be included that of the Indus and the eastern valley from a little conical hill at Mari, where the “Kalabagh diamonds” (quartz crystals) are found and which is crowned by an old Hindu ruin. Amongst picturesque spots may be mentioned Nammal, just beyond the Dhak Pass in Mianwali, also Kalabagh and Mari on the Indus, and Kotki in the throat of Chichali Pass. The average rainfall in the district is about 250 mm.
In 1913, British engineers, to meet the scarcity of irrigation and drinking water, built a dam on this namallake and irrigated lands up to Mianwali city. But with the passage of time and construction of Thal Canal and installation of tube wells, its utility of water squeezed up to some limit.
The gates of the dam are repaired by the irrigation department regularly but without enthusiasm. The hill torrents and rains fill the Namal Lake round the year. Due to a drought-like situation in the country, this lake dried up last year, which is the first incident of its kind during the last 100 years.