BOUTWELL.l 
VANADIUM    AND    URANIUM    IN    UTAH. 
201 
Accordingly,  after  the  completion  of  underground  work  in  the 
detailed  examination  of  the  Park  City  mining  district,  late  in  the 
winter  of  1904,  the  writer  visited  the  two  properties  in  Utah  from 
which  shipments  had  been  made  for  commercial  purposes.  He  made 
a  necessarily  hasty  study  of  the  geologic  occurrence  of  the  ores,  col- 
lected specimens  of  the  rare  minerals,  and  also  gathered  data  on 
deposits  reported  to  occur  elsewhere  in  the  State.     Since  his  return 
in° 
109' 
109° 
tt1  Visited 
x  Reported 
Sca-le- 
% 
^oTniles 
Fig.  1.'?.   Map  of  eastern  Utah,  showing  location  of  vanadium  and  uranium. 
to  the  office  there  has  not  been  sufficient  time  for  a  complete  study  of 
the  material  collected.  Doctor  Hillebrand  is  engaged  in  a  thorough 
chemical  examination  of  the  material,  and  the  writer  is  studying  its 
geologic  occurrence.  At  the  completion  of  this  work  the  final  result^ 
will  be  published  jointly.  Certain  newly  discovered  facts  regarding 
the  chemical  character  and  the  geological  occurrence  may  be  of  use  in 
current  exploration,  and  in  order  to  give  these  out  at  once,  this  general 
