COAL  ON   NOKTHEAST  SIDE   OF  BIGHORN   BASIN,   WYO.  181 
Section  of  Claggett  coal  beds  on  the  south  bank  of  Shoshone  River,  in  sec.  5,    / 
R.  97  W. 
Ft.     in. 
Clay,  white  (bentonite?) 6 
Coal 1 
Shale,  carbonaceous,  and  bony  coal 1     G 
Coal 9 
Shale  and  sandstone " 59 
Coal 5 
Shale,  hard 3 
Coal :; 
Shale,  hard 4 
Coal 1     1 
Shale,  carbonaceous 1     3 
Coal G 
Shale,  carbonaceous 8 
Goal  in  the  Laramie  and  Fort  Union  formations. — The  minable  coal 
of  the  Garland  field  occurs  in  the  Laramie  and  Fort  Union  formations, 
near  the  dividing  line  between  the  two.  As  the  Laramie  can  not  be 
clearly  distinguished  from  the  Fort  Union  in  this  field;  it  is  impossible 
to  tell  whether  some  of  the  beds  are  Fort  Union  or  Laramie,  and 
consequently  no  attempt  will  be  made  to  differentiate  them. 
Three  miles  north-northwest  of  Garland  are  two  mines  which  were 
worked  a  few  years  ago  to  supply  the  local  coal  market.  In  one  of 
these,  known  as  the  Sarver  mine,  the  coal  has  the  following  thickness: 
Section  of  coal  bed  in  the  Sarver  mine,  3  miles  north  of  Garland. 
Shale,  sandy.  Ft.    in. 
Coal 2 
Shale 2    2 
Coal 1 
Shale 4 
Coal 1 
Total  coal 1 
About  200  feet  north  of  the  Sarver  mine  there  is  an  opening  on 
an  underlying  bed  which  shows  4  feet  of  clean  coal  beneath  a  good 
sandstone  roof.  This  mine  and  the  Hopkins  mine,  half  a  mile  farther 
north,  are  located  on  opposite  sides  of  a  depressed  fault  block.  On 
the  south  side  of  this  block  the  coal  beds  are  offset  more  than  one- 
fourth  of  a  mile;  on  the  north  side  they  are  offset  more  than  three- 
fourths  of  a  mile. 
Close  to  the  northeast  corner  of  sec.  13,  T.  56  N.,  R.  01)  \\\,  32 
inches  of  coal  is  exposed  in  an  old  slope.  Only  one  bed  appears 
to  be  present  at  this  point.  One  mile  farther  northwest,  in  the 
NW.  J  SW.  i  sec.  1,  the  same  bed  is  3  feet  thick.  The  bed  at  this 
point  contains  a  |-inch  shale  parting  4  inches  below  the  top.  In 
places  the  upper  4  inches  of  the  bed  is  bony.  There  is  a  small  mine 
on  this  bed  in  the  SW.  \  NW.  \  sec  1,  T.  56  X.,  U.  99  W.  At  this 
mine  there  is  30  to  40  inches  of  coal,  thickening  from  the  entrance 
