SHERIDAN    COAL   FIELD,    WYOMING. 
147 
in  thickness  from  place  to  place.  The  Ulm  coals  are  not  mined  for 
commercial  purposes  and  are  not  taken  for  local  fuel  supply  except 
at  a  few  places.     The  following  sections  represent  the  lower  bed; 
Sections  of  Lower  Ulm  coal  bed. 
SEC.  34,  T.  54  N.,  R.  80  W. 
Coal  with  silicified  wood 
Shale 
Coal 
NE.  J  SEC.  30,  T.  54  N.,  R.  80  W. 
Shale. 
Coal,  with  lentils  of  sandstone 
and  silicified  wood 
Coal 
Coal  in  pit,  reported 
Ft. 
2 
2  10 
Feet. 
JACOB   LANG  PROSPECT,  SEC. 
R.  80  W. 
16 
T.  54  N., 
Shale,  carbonaceous 1 
Coal 2 
Shale,     thin,      carbonaceous, 
with  fossil  shells. 
Coal 4 
Coal,  bony,  base  of  bed  con- 
cealed. 
Ft.  in. 
3 
■2 
Total  coal 6     2 
PROSPECT  NEAR  CENTER  OF  SEC.  20,  T. 
54  N.,  R.  82  W. 
Ft.  in. 
Shale,  carbonaceous,  and  thin  coal.     7 
Coal,  with  two  thin  shale  seams     2     8 
Shale,  carbonaceous 3 
Coal 1 
Shale,  thin  parting. 
PROSPECT  NEAR  CENTER  OF  SEC.  20,  T. 
54  N.,  R.  82  W.— Continued. 
Shale,  carbonaceous,  etc. 
Coal 
Shale,  drab. 
-Cont'd.   Ft.  in. 
1    4 
Total  coal  bed 5    3 
NW.  i  SEC.  13,  T.  55  N.,  R.  81  W. 
Sandstone,  soft.  Ft.  in 
Shale,  carbonaceous 4 
Coal 7    6 
Shale,  thin  seam. 
Coal 2 
Shale. 
Total  workable  coal 9     6 
BETHEUREM  PROSPECT,  SEC.  14,  T.  54  N., 
R.  83  W. 
Ft.  in. 
Shale,  carbonaceous 9 
Shale,  with  thin  coal  seams 5 
Shale,  blue 1 
Coal,  bony 2 
Shale,  drab 6 
Coal,  bony 2    4 
Shale,  carbonaceous 6 
Coal 1 
Shale,  blue 4 
Coal,  bony 2 
Total  coal  bed 6    2 
The  shale  bands  in  the  section  at  the  Betheurem  prospect  are 
variable  both  in  composition  and  thickness.  The  lower  5  feet  4  inches 
of  coal  was  being  mined  for  domestic  fuel.  The  shale  seams  were 
rejected  in  niining. 
Six  feet  of  the  Lower  Ulm  coal  bed  is  exposed  in  a  prospect  pit  in 
the  SW.  I  sec.  34,  T.  54  N.,  R.  81  W.,  but  the  lower  part  of  the  bed  is 
concealed.  The  same  condition  also  prevails  near  the  south  side  of 
sec.  23,  T.  54  N.,  R.  82  W.,  where  5  feet  of  the  upper  part  of  the  bed 
is  exposed.  Four  feet  of  good  coal  in  the  upper  part  of  the  Lower 
Ulm  bed  was  exposed  near  the  southwest  corner  of  sec.  6,  T.  54  N., 
R.  80  W. 
In  a  prospect  pit  on  the  Lower  Ulm  coal  bed  in  the  SE.  |  sec.  30, 
T.  54  N.,  R.  80  W.,  4  feet  6  inches  of  coal  is  exposed,  the  lower  part 
of  the  bed  being  concealed. 
