Oranje Nassau IV

Oranje Nassau Mijn IV
Location
	Oranje Nassau Mijn IV Location in the Netherlands
Location	Heksenberg, Heerlen
province	Limburg
Country	Netherlands
Coordinates	50°54′59″N 5°58′37″E
Production
Products	Coal
Production	13,754,000 tons
History
Opened	1927
Closed	1966
Owner
Company	Oranje Nassau Mijnen

The Oranje Nassau IV (located in Heerlerheide, Heerlen), the last and smallest mine exploited by the Oranje Nassau Mijnen, started its life as a ventilation shaft for Oranje Nassau III. In 1910 the construction of a mine shaft was started. However the construction was halted and only reassumed in 1919. In 1927 the mine became operational.

This is Shaft 2 of Oranje Nassau I, but gives us an idea of how the shaft of ON-IV looked.

Underground, the mine was connect to the Oranje Nassau III and, for safety reasons, also the Staatsmijn Hendrik. In 1966 it became the first of the Oranje Nassau mines to close; however, via Oranje Nassau III mining activities continued till 1973.

In its short life it produced 13,754,000,000 kilograms of coal. The mine was 740 metres deep.

The terrain is now used by the Sigrano, a silversand mine, part of Sibelco.

External links

http://citg.tudelft.nl/?id=18387 Coal Mining in the Netherlands (Delft University of Technology)

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