- Source: Oranje Nassau IV
- Wangsa Oranye-Nassau
- Maurits dari Nassau
- Andi Mattalatta
- Wangsa Lippe
- Willem-Alexander dari Belanda
- G.K. Dijkstra
- Penaklukan Kepulauan Banda oleh Belanda
- Frans Seda
- Sejarah Belanda
- Aji Muhammad Parikesit
- Oranje Nassau IV
- House of Orange-Nassau
- Oranje Nassau Mijnen
- Countess Louise Juliana of Nassau
- Princess Carolina of Orange-Nassau
- William the Silent
- Heerlen
- House of Nassau
- Frederick Henry, Prince of Orange
- Princess Louise of Orange-Nassau
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, the mine became operational in 1927.
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; though mining activities continued until 1973via Oranje Nassau III.
The mine was 740 metres (2,430 ft) deep and produced 13,754,000,000 kilograms (3.0322×1010 lb) of coal during its operational period.
The terrain is now used by the Sigrano, a silversand mine, part of Sibelco.
External links
Coal Mining in the Netherlands (Delft University of Technology)