228  CONTBIBUTIONS    TO    ECONOMIC    GEOLOGY,    1903.  [bull. 225. 
(  bmmercial  aspects. — The  above  analysis  indicates  that  this  ore  is  of 
excellent  quality.  So  little  development  work  has  been  done  that 
there  is  meager  basis  for  estimating  its  quantity.  The  upper  cropping, 
from  which  the  sample  for  analysis  was  taken,  has  been  opened  by  a 
pit  20  feet  in  diameter,  and  the  lower  by  a  pit  covering  a  right  tri- 
angular area  30  to  40  feet  on  the  legs. and  to  a  depth  of  15  feet. 
These  were  the  best  two  croppings.  Others  in  the  immediate  vicinity 
had  been  only  slightly  prospected.  A  surveyor  who  ran  a  line  for  a 
railroad  through  this  region  in  the  early  days  reports  an  extensive 
body  of  iron,  apparent^  on  this  same  divide,  several  miles  to  the 
north,  and  others  state  that  promising  outcrops  occur  to  the  south 
along  this  divide  at  intervals  of  several  miles.  A  good  wagon  road, 
now  out  of  repair,  was  built  in  the  early  eighties  from  the  main  road 
along  the  Provo  River,  up  Soapstone  Creek,  past  a  sawmill,  to  the  ore 
pits  at  the  crest  of  the  divide.  At  present  the  nearest  railroad  point 
is  Park  City,  about  35  miles  west.  Standing  timber  is  plentiful,  and 
a  small  creek  flows  across  the  property.  If  on  thorough  investigation 
of  these  deposits,  and  the  others  reported  to  occur  in  its  vicinity,  it 
should  appear  that  the  amount  of  ore  warranted  operation  of  the  prop- 
erty, the  chief  problem  would  be  transportation. 
CONCLUSIONS. 
From  the  general  observations  made  during  the  reconnaissances 
which  have  been  described  above,  the  following  leading  conclusions 
maybe  drawn:  (1)  The  determination  that  limestone  at  the  head  of 
Soapstone  Gulch  is  of  lower  Carboniferous  age,  and  apparently  overlies 
the  great  red  sandstone  series,  and  thus  the  rocks  which  compose  the 
large  central  area  of  this  range,  tends  strongly  to  indicate  that  the  age  of 
the  core  of  the  Uinta  Range  is  earlier  than  lower  Carboniferous;  (2)  on 
the  divide  between  Duchesne  and  Provo  rivers,  at  the  head  of  Soap- 
stone  Gulch,  high-grade  workable  red  iron  ore  (hematite)  occurs  in 
limestone,  probably  as  replacement  deposits  along  easterly-westerly 
fracture  zones,  in  considerable  but  unproved  quantities. 
