Mayotte topographic map

In the Western Pyrenees, from the Basque mountains near the Bay of Biscay of the Atlantic Ocean, the average elevation gradually increases from west to east.

Average elevation: 8,911 ft

Paris in its early history had only the rivers Seine and Bièvre for water. From 1809, the Canal de l'Ourcq provided Paris with water from less-polluted rivers to the north-east of the capital. From 1857, the civil engineer Eugène Belgrand, under Napoleon III, oversaw the construction of a series of new…

Average elevation: 246 ft

Average elevation: 344 ft

Average elevation: 1,601 ft

Average elevation: 7,756 ft

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Average elevation: 69 ft

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Average elevation: 443 ft

454 caves have been identified over an area of 2.8 km2, and form two networks under this small area. To the north, the trou des Auges, ressaut de 108 m, trou des Filous, grotte Arva, and Cuvée des Ours connect with the Granier system, located in the center of the plateau, to form a 55.725 km network over a…

Average elevation: 4,452 ft

Average elevation: 1,132 ft

Average elevation: 285 ft

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Average elevation: 3,294 ft

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Average elevation: 220 ft

Average elevation: 4,892 ft

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Average elevation: 627 ft

Average elevation: 1,670 ft

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Average elevation: 1,562 ft

Average elevation: 2,011 ft

Average elevation: 3,924 ft

According to the Köppen climate classification, the top of the Grand Ballon features a subalpine climate (Köppen: Dfc) due to its high altitude comparable to the Alps or the Pyrenees. Along with the Hohneck the summit of the Grand Ballon is the coldest and windiest point in Alsace. A record low of −30.2…

Average elevation: 3,737 ft

Average elevation: 1,457 ft

Average elevation: 364 ft

Average elevation: 4,557 ft

The climate is cold and temperate (Köppen climate classification Cfb), and is greatly influenced by altitude. Being the highest part of the Alps, Mont Blanc and surrounding mountains can create their own weather patterns. Temperatures drop as the mountains gain in height, and the summit of Mont Blanc is a…

Average elevation: 13,425 ft

Average elevation: 489 ft

Average elevation: 938 ft

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Average elevation: 856 ft

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Average elevation: 2,323 ft

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Average elevation: 177 ft

Average elevation: 16 ft

Average elevation: 23 ft

Average elevation: 2,497 ft

Average elevation: 5,902 ft

Average elevation: 915 ft

Average elevation: 3,038 ft

Average elevation: 551 ft

Average elevation: 1,614 ft

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Average elevation: 3,612 ft

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Average elevation: 1,991 ft

Average elevation: 118 ft

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Average elevation: 5,118 ft

Average elevation: 3,307 ft

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Average elevation: 535 ft

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Average elevation: 105 ft

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Average elevation: 1,749 ft

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Average elevation: 279 ft

Average elevation: 1,713 ft

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Average elevation: 2,267 ft

Average elevation: 112 ft

Average elevation: 840 ft

Average elevation: 2,733 ft

Average elevation: 161 ft

Average elevation: 906 ft

Average elevation: 5,604 ft