Erg of Bilma
{{Infobox settlement
| name = Erg of Bilma
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| settlement_type = Erg
| image_skyline =Fachi-Bilma-D%C3%BCnen.jpg
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| image_caption =Landscape of dunes in the Erg of Bilma.
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| image_map =Erg_of_bilma.png
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| map_caption =Location of the Erg of Bilma.
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| subdivision_type = Country
| subdivision_name = Niger
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| elevation_m = 4400
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The Erg of Bilma is a dune sea (Arabic: erg) in the Ténéré desert region of the south central Sahara Desert.{{Cite book|title=Natural Wonders of the World|publisher=Reader's Digest Association, Inc|year=1980|isbn=0-89577-087-3|editor-last=Scheffel|editor-first=Richard L.|location=United States of America|pages=79|editor-last2=Wernet|editor-first2=Susan J.}} 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 oases of the Kaouar rise. The Erg covers an area of approximately {{Convert|455,000|km2|mi2}}.
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.{{Citation |first=Jolijn |last=Geels |title=Niger: The Bradt Travel Guide |publisher=Bradt |location=London |year=2006 |isbn=1-84162-152-8 }}.
See also
References
{{Reflist}}
Further reading
- {{Citation |first=Samuel |last=Decalo |title=Historical Dictionary of Niger |publisher=Scarecrow Press |location=London and New Jersey |year=1979 |isbn=0-8108-1229-0 |url-access=registration |url=https://archive.org/details/historicaldictio0000deca_w7m6 }}.
External links
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- [https://web.archive.org/web/20070610151627/http://www.geographie.uni-wuerzburg.de/personen/physische_geographie/baumhauer_prof_dr_roland/ Prof. Dr. R. Baumhauer] at [https://web.archive.org/web/20070623023501/http://www.uni-trier.de/uni/fb6/geographie/forschung/baumh_jungq/baumh_jungq.htm The University of Trier's Geography center] has produced a number of papers on the Geography and Paleogeography of the Erg of Bilma.
- [https://web.archive.org/web/20071204204440/http://magma.nationalgeographic.com/ngm/0212/feature3/ Surviving the Sahara] : National Geographic, December 2002.
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