Oranje Nassau IV

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

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.

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.

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