146         CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,   1907,   PART   II. 
Section  of  coal  bed  in  Kirkman  prospect,  sec.  26,  T.  55  N.,  R.  80  W. 
Sandstone,  soft,  white.  Ft.  in. 
»  Shale,  blue 6 
Coal 1 
Shale,  thin  seam. 
Coal 2    4 
Bone,  sandy. 1 
Coal 1 
Shale. 
Total  coal  bed 4    4 
A  coal  bed  of  workable  thickness  is  exposed  on  Clear  Creek  near 
the  north  line  of  sec.  11,  T.  55  N.,  R.  78  W.,  east  of  the  area  mapped. 
Ten  feet  of  coal  is  exposed  down  to  water  level.  At  the  time  this  coal 
was  examined  the  creek  was  at  flood  and  the  lower  part  of  the  bed 
was  concealed.  The  same  coal  bed  has  been  prospected  with  the  drill 
in  sees.  23,  24,  and  25  and  shafts  have  been  sunk  to  it  in  the  SW.  \ 
sec.  22  and  the  NE.  J  SE.  \  sec.  24,  T.  55  N.,  R.  78  W.  The  follow- 
ing data  are  reported  by  J.  N.  Sweat,  who  is  in  charge  of  the  con- 
struction of  a  coal-mining  plant  at  Kendrick  station,  in  sec.  25,  T. 
55  N.,  R.  78  W. 
Thickness  of  coal  bed  in 
T.  55  N.,  R.  78  W. 
Location. 
Opening. 
Depth  to 
coal. 
Thickness 
of  coal. 
SW.  |SW.  Jsec.  22 
Shaft 
Feet. 
110 
116 
148 
148 
148 
180 
178 
170 
Feet. 
13 
23 
Drill  hole 
12 
SE.  J  SE.  Jsec.  23... 
do 
12 
NE.  J  SE.  J  sec  24 
Shaft 
12 
SW.  J  SE.  \  sec.  24 
Drill  hole 
12 
SW.  JNE.  a  sec.  25 
do 
14 
NW.  J  N W.  \  sec.  25 
do 
12 
SE.  \  NW.  1  sec.  26 
do 
12 
On  the  same  authority  is  given  the  following  record  of  a  well  drilled 
at  Clearmont,  in  sec.  21,  T.  54  N.,  R.  79  W.: 
Section  of  well  at  Clearmont,  sec.  21,  T.  54  N.,  R.  79  W. 
Feet. 
Sandstone  and  shale 195 
Coal 12 
Sandstone  and  shale 101 
Coal 18 
No  information  was  obtainable  as  to  the  quality  of  the  coal  reported 
in  this  section. 
ULM    COAL    BEDS. 
The  presence  of  the  Ulm  coal  beds  is  more  generally  indicated  by 
burned  rock  than  by  their  exposures.  The  Upper  Ulm  coal  bed, 
especially,  has  been  burned  very  extensively.  Complete  sections 
of  the  Ulm  coal  beds  could  be  obtained  at  only  a  few  localities,  and 
these  indicate  that  the  beds  are  usually  divided  into  several  benches 
and  that  both  the  individual  benches  and  the  beds  as  a  whole  vary 
