spurr]       ORE    DEPOSITS  OP  SILVER    PEAK    QUADRANGLE,   NEV.        115 
and  others.  Some  of  the  material  gives  fair  assays  for  silver,  some 
shows  gold,  and  some  it  is  claimed  contains  a  considerable  quantity 
of  tin,  although  this  subject  has  not  yet  been  investigated  by  the 
writer.  Some  silver  ore  from  this  zone  was  milled  at  Columbus 
twenty  -five  years  ago. 
Weepah  is  situated  at  the  contact  of  the  granitic  mass  last  men- 
tioned, on  its  south  side.  It  was  discovered  in  the  early  part  of  1902 
by  an  Indian,  and  was  located  by  a  rancher  named  James  Darrough. 
The  find  caused  some  excitement,  and  at  one  time  about  200  people 
were  there.  It  was  bonded  to  a  company  for  examination,  but  was 
not  further  developed,  and  was  deserted  at  the  time  of  the  writer's 
visit.  The  openings  are  very  slight,  consisting  chiefly  of  a  few  pits 
showing  bluish  quartz  mixed  with  limestone.  From  these  were  taken 
a  few  tons  of  ore  showing  high  values  in  gold,  with  some  silver,  but 
the  ore  bodies  could  not  be  followed. 
DISTRICT  NEAR  DYERS. 
On  the  west  side  of  the  Silver  Peak  Range  near  Fish  Lake  Valley 
and  1  mile  east  of  Dyers  is^  a  mineral  district  where  some  prospecting 
has  been  done,  although  at  present  it  is  deserted.  In  1885  to  1887 
this  district  was  located  and  was  the  scene  of  a  short-lived  excitement, 
but  was  afterwards  abandoned.  Following  the  Tonopah  discoveiy  it 
was  relocated,  but  no  new  work  was  done.  One  of  the  mines  was  re- 
located under  the  name  of  the  West  Tonopah,  which  is  surprising, 
considering  that  it  is  about  50  miles  from  Tonopah  as  the  crow  flies. 
Nearly  all  the  ores  here  are  bedding-plane  deposits,  of  the  same  type 
as  many  of  those  near  Lone  Mountain.  They  occur  in  the  Silurian 
limestone,  within  a  moderate  distance  of  a  small  body  of  intru- 
sive granite.  Along  the  stratification  occur  bunches  of  quartz,  which 
are  discontinuous  both  in  horizontal  and  vertical  extent,  fading  out 
to  absolutely  nothing.  The  quartz  contains  black  copper-silver  sul- 
phide, which,  when  oxidized,  yields  stains  of  copper  carbonate,  iron 
oxide,  and  silver  chloride. 
WINDYPAH  OR  FESLER  DISTRICT. 
This  district,  which  has  only  recently  been  opened  up,  lies  in  the 
southwestern  part  of  the  quadrangle  in  the  Silver  Peak  Range,  east  of 
Piper's  ranch.     An  abandoned  mine  or  prospect — the  Good  Hope — has 
existed  for  many  years  a  number  of  miles  northeast  of  the  district,  in 
the  same  geological  position,  but  the  camp  mentioned  was  discovered 
in  the  winter  of  1903  by  J.  G.  Fesler.     A  great  deal  of  prospecting 
i  has  been  done,  but  no  actual  mining.     There  is  here  a  large  body  of 
'granitic  rock,  intrusive  into  Silurian  limestones,  and  the  ores  occur  in 
both  formations.     The  veins  may  be  divided  into  three  distinct  classes: 
(1)  Segregations  in  alaskite,  which  is  here  locally  intrusive  into  the 
