358         CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,   1907,   PART   II. 
Locality  No.  12:  There  have  been  several  prospects  and  local  coal 
mines  along  the  Laramie  boundary  in  the  eastern  part  of  T.  35  N., 
R.  6  W.  The  bed  in  this  vicinity  is  represented  by  the  following  sec- 
tion, taken  along  the  south  line  of  sec.  14: 
Section  of  Laramie  coal  beds  in  sec.  14,  T.  35  N,  R.  6  W.  (No.  12). 
Shale.                                                                                                           Ft.  in. 
Coal 2 
Shale ]  5 
Coal -.     4  8 
Coal,  bony 1 
Coal 5 
Shale.  
22  2 
A  sample  of  the  coal  bed  shown  above  was  taken  for  analysis  by 
F.  C.  Schrader  in  1905.  The  sample  was  obtained  by  making  a  cut 
across  the  coal  bed  exclusive  of  the  bony-coal  parting.  The  moisture 
content  is  less  than  in  many  of  the  coals  in  the  San  Juan  region 
(Durango-Gallup  field),  but  the  percentage  of  ash  is  far  above  the 
average. 
Locality  No.  13:  Along  the  line  between  sees.  32  and  33,  T.  35  N., 
R.  5  W.,  the  Laramie  coal  beds  are  exposed  at  several  places.  There 
has  been  some  local  prospecting  in  the  vicinity.  Two  beds  are 
exposed,  with  signs  of  a  third,  as  shown  in  the  following  section, 
taken  at  the  central  part  of  the  east  line  of  sec.  32: 
Section  of  Laramie  coal  beds  in  sec.  32,  T.  35  N.,  R.  5  W.  {No.  13). 
Ft.     in. 
Shale 10 
Coal 3-6 
Shale 2 
Coal 1 
Shale 1 
Coal 1      6 
Shale 1 
Coal 7 
Shale 25 
Sandstone ! 2 
Coal  signs,  possibly  workable  bed. 
Sandstone 2 
Shale 25 
Sandstone 4 
Coal 6 
Sandstone,  massive,  base  of  Laramie 60 
145-148     11 
Locality  No.  14:  In  T.  34  N.,  R.  5  W.,  there  appears  to  be  much 
coal  at  the  base  of  the  Laramie,  but  a  large  amount  of  it  contains 
hard  argillaceous  streaks,  commonly  known  as  "bone  coal."  In  this 
region  tlie  Tertiary  escarpment  is  near  the  Laramie  outcrop;  the 
