Tibesti Mountains topographic map

Average elevation: 368 m

Average elevation: 468 m

Average elevation: 293 m

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Average elevation: 336 m

Average elevation: 297 m

Average elevation: 367 m

Average elevation: 468 m

Average elevation: 390 m

Average elevation: 378 m

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Average elevation: 610 m

Average elevation: 299 m

Average elevation: 665 m

Average elevation: 746 m

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Average elevation: 392 m

Average elevation: 385 m

Average elevation: 326 m

Average elevation: 287 m

Average elevation: 1,355 m

Average elevation: 448 m

Average elevation: 328 m

Average elevation: 287 m

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Average elevation: 471 m

Average elevation: 227 m

Average elevation: 390 m

Lake Chad is divided into north and south parts by a shallow sill called the Great Barrier, with the bottom of the northern basin at an altitude of 275.3 m (903 ft) and the bottom of the southern basin at 278.2 m (913 ft). When the water level in the south exceeds 279 m (915 ft) above sea level, it will flow…

Average elevation: 282 m

Average elevation: 368 m

Average elevation: 395 m

Average elevation: 433 m

Average elevation: 402 m

Average elevation: 287 m

Emi Koussi (also known as Emi Koussou) is a high pyroclastic shield volcano that lies at the southeast end of the Tibesti Mountains in the central Sahara, in the northern Borkou Region of northern Chad. The highest mountain of the Sahara, the volcano is one of several in the Tibesti range, and reaches an…

Average elevation: 2,907 m

Average elevation: 329 m

Average elevation: 401 m

Average elevation: 437 m

Average elevation: 326 m

Average elevation: 365 m

Average elevation: 310 m

Average elevation: 395 m

Average elevation: 554 m

Average elevation: 449 m

Average elevation: 422 m

Average elevation: 433 m

Average elevation: 1,103 m

The first cadastral map of the town of Moundou was manufactured on 2 February 1926. Since there were not, at the time, the materials for substantial topographical surveys, the drainage pipeline of the town was facing the river in the belief that the natural inclination would head toward the river, when in…

Average elevation: 438 m

Average elevation: 284 m

Average elevation: 338 m

Average elevation: 288 m

Average elevation: 377 m

Average elevation: 365 m

Average elevation: 554 m

Average elevation: 523 m

Average elevation: 290 m

Average elevation: 372 m

Average elevation: 367 m

Average elevation: 479 m

Average elevation: 294 m

Average elevation: 326 m

Average elevation: 295 m

Average elevation: 365 m

Average elevation: 368 m

Average elevation: 672 m

Average elevation: 392 m

Average elevation: 381 m

Average elevation: 366 m

Average elevation: 370 m

Average elevation: 294 m

Average elevation: 690 m

Average elevation: 368 m

Average elevation: 607 m

Lake Chad has shrunk considerably since the 1960s, when its shoreline had an elevation of about 286 metres (938 ft) above sea level and it had an area of more than 26,000 square kilometres (10,000 sq mi), making its surface the fourth largest in Africa. An increased demand on the lake's water from the local…

Average elevation: 282 m

Average elevation: 294 m

Average elevation: 299 m

Average elevation: 308 m

Average elevation: 379 m

Average elevation: 397 m

Average elevation: 359 m

Average elevation: 298 m

Average elevation: 308 m

Average elevation: 656 m

Average elevation: 544 m

Average elevation: 398 m

Average elevation: 299 m

Average elevation: 324 m

Average elevation: 391 m

Average elevation: 450 m

Average elevation: 341 m

Average elevation: 435 m

Average elevation: 456 m

Average elevation: 686 m

Average elevation: 300 m

Average elevation: 588 m