SULPHUR  AND  PYRITE. 
THE  COVE  (REEK  SULPHUR  BEDS,  UTAH. 
By  Willis  T.   Lee. 
GENERAL  STATEMENTS. 
Location. — The  sulphur  deposits  here  described  are  owned  by  the 
Utah  Sulphur  Company,  of  Salt  Lake  City,  and  are  located  in  central 
Utah,  at  Sulphurdale,  a  small  mining  camp  about  20  miles  north  of 
Beaver,  Utah,  the  nearest  important  town.  The  camp  is  not  perma- 
nent and  is  deserted  during  the  winter  or  whenever  mining  operations 
cease.  The  deposits  are  situated  about  4  miles  south  of  the  site  of 
old  Cove  Fort  and  are  locally  known  as  the  Cove  Creek  sulphur  beds. 
They  are  conveniently  reached  by  team  from  Beaver,  but  the  railroad 
connection  or  shipping  point  is  Blackrock,  a  station  on  the  San  Pedro, 
Los  Angeles  and  Salt  Lake  Railroad  about  24  miles  northwest  of 
Sulphurdale. 
Occurrence. — The  sulphur  extends  from  the  surface  downward  to  a 
considerable  though  unknown  depth  in  beds  of  soft  rhyolitic  tuff  and 
varies  in  amount  in  different  parts  of  the  beds.  An  area  of  several 
acres  has  been  exploited,  the  sulphur  having  been  mined  more  or  less 
continuously  for  30  years,  but  the  lateral  extent  as  well  as  the  depth 
of  the  deposits  is  unknown. 
Neighboring  deposits. — There  are  several  more  or  less  widely  sepa- 
rated deposits  of  sulphur  in  the  vicinity  of  Sulphurdale,  ranging  in  a 
general  northeast-southwest  direction.  One  deposit  3  miles  north  of 
the  camp  is  said  to  have  been  worked  to  some  extent,  but  the  other 
prospects  have  not  been  developed,  although  they  are  said  to  show 
indications  of  considerable  quantities  of  sulphur. 
GEOLOGY. 
Formations. — The  Paleozoic  sediments  of  the  plateau  region  prob- 
ably occur  at  a  considerable  depth  beneath  the  surface  at  Sulphur- 
dale. Their  nearest  exposures  are  at  the  north  end  of  Mineral  Moun- 
tains and  in  the  Beaver  River  range  to  the  west,  where  they  dip 
eastward  beneath  the  extrusive  rocks  which  cover  the  surface. 
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