Neha Patil

Erg of Bilma

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Country  Niger
Elevation  4,400 m (14,400 ft)
Erg of Bilma httpsuploadwikimediaorgwikipediacommonsthu

The Erg of Bilma is a dune sea (Arabic: erg) in the Ténéré desert region of the south central Sahara Desert. The Erg of Bilma stretches southwest from Fachi and the Tibesti Mountains. On the west it is bounded by the Aïr Mountains in north central Niger, and to the east it passes Bilma, continuing on to the Chadian border. It surrounds on three sides the oasis of Bilma, southernmost of a north–south string of oasies of the Kaouar rise. The Erg covers an area of approximately 455,000 square kilometres (176,000 sq mi).

Contents

Map of Bilma, Republic of Niger

At its southernmost edge, some of the dunes have been stabilized by the growth of vegetation, allowing human cultivation of crops like millet and sorghum on the slopes.

History

The ancient Bornu Empire to Fezzan caravan routes had to cross the dunes of the erg south of Bilma as the last major obstacle before reaching the sahel. While that traffic largely ceased after 1820, trade though the erg of Bilma continues from the Lake Chad region and the Termit Massif on a small scale.

References

Erg of Bilma Wikipedia


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