Page 57 - 00 Volume 5 The Mine
P. 57

Mr  Nanson  illustrated  his  address  with  slides
                                                              and  gave  a  brief  history  of  the  mine,  which  was
                                                              worked  by  underground  methods  as  early  as  1886,
                                                              through all the mining methods used up to the present
                                                              day.
                                                                 The mine must have a history as varied as any in

                                                              the world, he said.
                                                                  This report was followed by the same paper on
                                                              9th February 1961 with an article on the unique use of

                                                              the dredge in coalmining:

                                                                        Unique use of dredge in
                                                                     coalmining at Lake Kimihia,
                                                                                    Huntly

                                                                  New  Zealand  is  probably  the  first  country  to
                                                               use  a  dredge  for  coal  mining.  A  cutter-section
                                                               dredge  is  part  of  the  equipment  at  the  Kimihia
                                                               Opencast  mine,  one  of  the  world's  most
                                                               interesting  mines.  The  dredge  is  capable  of
                                                               shifting  1.5  million  cubic  yards  of  material  in  a
       The sluice gate used to control the level of water in   year.

                       the dredging pond.                         A  few  miles  from  Huntly,  Waikato,
                                                               approximately  400  tons  of  coal  a  day  are
     dangerous, faces in the soft clay.                        extracted  from  the  bed  of  Lake  Kimihia.  The
                          DISAPPEAR                            mine's annual output of 80,000 tons makes it one
        The  lake  would  eventually  disappear  almost        of  the  most  productive  in  New  Zealand.  If
     altogether.                                               necessary it can produce 130,000 tons a year.
        Asked whether the reclaimed land would be used for        During  the  Second  World  War  a
     farming purposes, Mr Nanson replied that it would be      considerable  increase  in  the  demand  for  coal
     difficult  to  get  anything  to  grow,  apart  from  some   prompted  the  Mines  Department  to  consider
     rushes, in the soft clay.                                 reopening  the  Kimihia  mine.  It  had  been











































                     Harry MacDonald (left) and a work colleague above the original #1 opencast pit.
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