240  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1904.         [bull.  260. 
we<  methods.  Water  is  obtained  from  the  abandoned  West  Moun- 
tain placer  shaft,  and  an  additional  supply  may  be  obtained  from 
Mound  Springs  near  Garfield  Beach,  about  12  miles  distant.  The 
results  of  this  experiment  during  its  first  year  are  reported  to  have 
been  so  satisfactory  that  it  is  proposed  to  increase  the  daily  capacity 
of  the  mill  to  3,000  tons.  The  holdings  of  other  companies,  notably 
the  Boston  Consolidated,  embrace  large  bodies  of  this  monzonite 
Utah  copper  may  initiate  an  important  new  phase  of  copper  mining 
in  Bingham. 
"The  Yampa  Consolidated  Company  has  developed  a  new  shipping 
mine  in  the  Yampa  limestone  on  the  Yampa  and  adjoining  claims 
on  the  north  slope  of  Carr  Fork.  A  smelter  erected  in  lower  Bing] 
ham  Canyon  was  found  inadequate  and  has  been  entirely  rebuilt,  with 
a  capacity  to  treat  600  tons  of  Yampa  ore  daily. 
The  old  Columbia  property  has  been  taken  as  a  central  group  in 
forming  another  consolidation  known  as  the  Ohio  Copper  Com- 
pany. Exploration  on  an  increased  scale  has  resulted  in  largely 
increasing  the  output  from  this  property,  which  is  now  treated  at  the 
rate  of  L20  tons  a  day  at  the  remodeled  Winamuck  mill.  The  Erie 
mine  is  now  included  in  the  holdings  of  the  Ohio  Company. 
In  upper  Bingham  Canyon,  in  the  Kempton  mine,  a  large  body 
of  high-grade  ore  has  been  opened,  but  owing  to  disagreement  as  to 
its  ownership  it  has  not  yet  been  mined.  Following  the  settlement  of 
the  litigation  between  the  Butler  and  the  Liberal,  consolidation  was 
effected  and  profitable  operations  were  resumed.  In  the  Silver  Shield 
mining  was  interrupted  by  an  uncontrollable  tlow  of  water  in  L903 
Subsequently  the  property  was  consolidated  with  the  Bully  Boy,  and 
an  effort  made  to  drain  it  by  extending  the  Franklin  tunnel  undej 
the  Niagara  to  the  Silver  Shield  tissure.  It  is  understood  that  ore 
has  been  found  at  this  deeper  level  in  Silver  Shield  ground  near  its 
limits.  The  Xast.  after  being  reequipped  for  more  extensive  and 
deeper  development,  has  produced  ore  sufficient  to  supply  its  50-toi 
mill  regularly.  The  old  Fortune,  now  the  Fortuna,  mine  has  beem 
reopened,  and  is  being  thoroughly  developed. 
Among  the  still  more  recent  and  extensive  consolidations  are  the 
New  Haven  Copper  and  Gold  and  the  Utah-Apex  companies.  The 
New  Haven  property  embraces  the  Zelnora,  Morning  Star,  and 
Frisco.  An  extensive  plan  for  the  development  of  these  proper- 
ties as  a  whole,  by  which  the  Frisco  tunnel  is  being  driven  westward 
to  tap  the  Zelnora  vein  in  depth  and  to  prospect  the  intervening 
ground,  is  now  being  actively  carried  out. 
The  Utah-Apex  comprises  the  Red  Wing  Extension,  Highland 
Boy   Consolidated,   and   adjoining  properties  on  the   north  side  of 
