Weiach is a municipality in the district of Dielsdorf in the canton of Zürich in Switzerland. Weiach is first mentioned in 1271. It has belonged to Swiss Confederation since 1424. Since 1962 there has been a gravel industry located in Weiach. On 14 November 1990, Alitalia Flight 404 crashed into Stadlerberg Mountain near Weiach while attempting to land at Zurich Airport. The crash, which was caused by a faulty navigation system, killed all 40 passengers and 6 crew. Weiach has an area of 9.5 square kilometers (3.7 sq mi). Of this area, 36.9% is used for agricultural purposes, while 49.5% is forested. Of the rest of the land, 11.7% is settled (buildings or roads) and the remainder (1.9%) is non-productive (rivers, glaciers or mountains). More information...
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