Mandara mountains

The Mandara Mountains are a volcanic range extending about 190 km (about 120 mi) along the northern part of the Cameroon–Nigeria border, from the Benue River in the south (9.3°N 12.8°E) to the north-west of Maroua in the north (11.0°N 13.9°E).[1] The highest elevation is the summit of Mount Oupay, at 1,494 m (4,900 ft) above sea level (10°53′N 13°47′E).The region is densely populated, mainly by speakers of Chadic languages, including both the Mofu and the Kirdi ethnic groups.