TITANIFEEOUS  IRON  ORE  OF  IRON  MOUNTAIN, 
WYOMING.0 
By  Sydney  H.  Ball. 
INTRODUCTION. 
In  the  fall  of  1906  the  writer  visited  Iron  Mountain,  Wyoming. 
Since  the  economic  possibilities  of  the  deposits  there  are  awakening 
wide  interest  and  since  the  descriptions  already  published  are  out  of! 
print  or  are  difficult  of  access,  a  short  description  of  this  region  may  be 
of  value.  The  following  bibliography  includes  the  principal  articles 
relating  to  Iron  Mountain: 
Stwsbi  i:v.  How  \ui>.  Captain,  Corps  Topographical  Engineers,  U.  S.  Army.  Explo- 
ration and  survey  of  the  valley  of  the  Great  Salt  Lake  of  Utah,  etc.  Philadelphia, 
1852,  p.  266. 
Hayden,  F.  V.  First,  Second,  and  Third  Ann.  Repts.  U.  S.  Geol.  and  Geog.  Survey 
Terr.  (1867-1869),  1873,  pp.  80-81. 
Preliminary  Etept.  U.  S.  Geol.  Survey  of  Wyoming  and  portions  of  contigd 
ous  territories  (1870),  1871.  p.  11. 
King,  Clarence.     U.  S.  Geol.  Explor.  Fortieth  Par.,  vol.  1,  p.  27. 
II  \'.i  e,  Arnold,     [bid.,  vol.  2,  pp.  14-16. 
Zirkel,  F.     [bid.,  vol.  6,  p.  107. 
K  \  i< .  in.  Wilbur  C.  Bull.  14,  Exper.  station,  Laramie,  Wyo.,  Univ.  Wyoming,  Oct., 
1893,  p.  177. 
Kemp,  J.  F.     Nineteenth  Ann.  Etept.  U.  S.  Geol.  Survey,  pt.  3, 1899,  p.  420. 
Lindgren,  Waldemar.     Science,  new  series,  vol.  16,  1902,  pp.  984-985. 
Kemp,  J.  F.     School  of  Mines  Quarterly,  vol.  20,  1900,  pp.  352-355. 
Hill,  B.  F.     School  of  Mines  Quarterly,  vol.  20,  1900,  p.  364. 
The  conclusions  herein  expressed  are  in  all  essential  particulars  in 
accord  with  those  set  forth  by  Mr.  Lindgren  and  by  Professor  Kemp. 
GEOGRAPHY    AND    HISTORY. 
Iron  Mountain  is  in  southeastern  Wyoming  in  the  east-central  part 
of  Albany  County.  It  lies  8  miles  west  of  Iron  Mountain  station,  on  i 
the  Colorado  and  Southern  Railroad,  and  approximately  40  miles 
northwest  of  Cheyenne,  Wyo.     The  deposit,  which  is  in  the  Laramie 
a  After  this  note  had  been  partly  written  in  the  field  an  article  by  Prof.  J.  F.  Kemp  in  the  Zei1  sclirift 
fur  praktische  Geologie  (vol.  13,  pp.  71-80)  came  to  the  writer's  attention.  Professor  Kemp,  in  additioi 
to  describing  Iron  Mountain,  menl  ions  the  occurrence  of  similar  iron  ore  in  dikes  at  the  Shanton  ranch 
4  miles  southwest  of  Iron  Mountain. 
206 
