384         CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,    1907,   PART   II. 
If  the  entire  thickness  of  coal  may  be  represented  by  a  single  bed  8 
feet  thick,  the  total  amount  in  this  area  is  2,672,803,840  short  tons. 
The  present  development  of  the  western  part  of  the  southern  Utah 
coal  region  is  limited  to  the  few  small  mines  and  prospects  shown  on 
the  map.  The  mines  are  worked  only  during  the  fall  and  winter 
months,  to  supply  the  local  demand,  and  the  entire  output  is  only  a 
few  hundred  tons  a  year.  When  a  railroad  enters  the  field,  this  coal 
may  compete  with  others  in  the  southern  California  market,  with 
the  advantage  of  being  the  nearest  of  the  Rocky  Mountain  fields. 
That  part  of  the  southern  Utah  coal  region  with  which  the  present 
report  is  concerned  is  divided  into  the  Harmony,  Colob,  and  Kanab 
fields,  which  are  distinctly  separated  topographically. 
HARMONY  FIELD. 
The  Harmony  coal  field  is  the  best  known  though  smallest  in  the 
southern  Utah  region.  The  coal  outcrop  is  only  about  3  miles  long, 
and  the  field  has  been  prospected  by  a  number  of  pits,  tunnels,  and 
shafts. 
LOCATION. 
The  Harmony  field  lies  partly  in  Iron  County  and  partly  in  Wash- 
ington County,  in  sees.  29  and  32,  T.  37  S.,  R.  13  W.,  and  in  unsur- 
veyed  land  in  the  adjoining  township  to  the  south.  This  area  is  a  hilly 
country  between  the  Pine  Valley  Mountains  on  the  southwest  and 
the  Harmony  Mountains  on  the  northeast,  and  is  drained  by  branches 
of  Harmony  Creek.  The  coal  in  the  Harmony  field  is  as  accessible 
as  any  other  in  the  entire  region  and  is  much  more  easily  reached 
than  the  coal  in  the  greater  part  of  the  region.  The  principal  pros- 
pects are  situated  4  miles  northwest  of  New  Harmony,  at  an  eleva- 
tion of  about  6,000  feet,  and  are  reached  by  a  wagon  road  up  Pace 
Creek.  New  Harmony  is  connected  with  Cedar  City,  20  miles  to 
the  northeast,  by  a  good  wagon  road  across  a  broad  wash-covered 
area. 
OCCURRENCE    AND    THICKNESS    OF   COAL. 
The  coal  in  the  Harmony  field  occurs  in  a  narrow  belt  of  Creta- 
ceous strata  which  outcrop  along  the  eastern  base  of  a  low  range  of 
hills  composed  of  andesite.  The  coal-bearing  rocks  contain  abundant 
fossils  of  Colorado  age  and  are  correlated  with  the  coal  measures  on 
the  Colob  Plateau,  but  neither  the  fossils  nor  the  rocks  are  suffi- 
ciently distinctive  to  determine  the  exact  horizon  that  is  here  rep- 
resented as  compared  with  the  section  on  the  plateau.  Only  about 
600  feet  of  Cretaceous  rocks,  consisting  of  alternating  layers  of  drab 
shale,  buff  sandstone,  lenses  of  gray  limestone,  and  several  beds  of 
coal,  are  exposed  in  the  Harmony  field.  These  rocks  are  uncon- 
formably  overlain  by  Eocene  rocks  and  they  are  delimited  below  by 
