Story: Coal and coal mining

Hydraulic mining

Hydraulic mining

This diagram shows how water is effectively used in hydraulic mining. Safety considerations and the drive to obtain as much coal as possible from an area led to the progressive replacement of underground mining by opencast mines. However, underground mining was also revolutionised in New Zealand by the use of high-pressure water jets to extract the coal, which was then transported out of the mine by the water.

About this item

Te Ara - The Encyclopedia of New Zealand

This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.

Source: Paul Mahoney, Charming Creek history album. Hokitika: New Zealand Forest Service, 1985

All images & media in this story

How to cite this page:

Alan Sherwood and Jock Phillips, 'Coal and coal mining - The late 20th and the 21st centuries', Te Ara - the Encyclopedia of New Zealand, (accessed 30 March 2017)

Story by Alan Sherwood and Jock Phillips, published 12 Jun 2006, updated 7 Sep 2016