54 
CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1905. 
ECONOMIC   CONDITIONS. 
The  various  camps  herein  described,  the  locations  of  which  are  shown  on  the   sketc 
map,  fig.  3,  are  connected  with  the  supply  points  by  wagon  roads,  most  of  them  surpris 
ingly  good,  considering  the  fact  that  many  are  less  than  a  year  old.     Some  mines  have 
small,  but  for  the  present  sufficient,  water  supply  near  at  hand.     Other  camps  arc  con 
pelled  to  haul  their  water  from  seeps  20  miles  distant.     Pinon  and  juniper  grow  sparse! 
Fig.  3.— Sketch  map  of  southwestern  Nevada  and  eastern  California,  showing  location  of  mini] 
camps. 
above  an  altitude  of  6,000  feet.  They  are  rarely  of  sufficient  size  for  mine  timbers  oth 
than  stulls,  but  the  former  makes  an  excellent  fuel.  The  power  question  will  probably  I 
solved  at  the  successful  camps,  as  it  has  been  at  Goldfield,  by  the  transmission  of  elect] 
power  generated  on  the  swift  streams  of  the  Siena  Nevada.  The  heat  of  .July  and  Augu 
renders  surface  work  almost  impossible  in  the  more  southern  camps.  # 
