CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,  1901,  PART  II. 
Farther  north,  on  the  west  side  of  the  river,  the  following  section 
is  exposed: 
Section  of  bed  C  on  west  bank  of  Little  Missouri  River  near  Bryan's  ranch,  about  1  mile 
north  of  north  line  of  T.  142  N.,  R.  102  W. 
Ft.  in. 
Lignite 2  10 
Clay 10 
C  ^Lignite 3  4 
Clay 10 
Lignite 7  7 
Clay,  sandy,  to  river  level. 
Total  lignite 13       9 
An  exposure  of  this  bed  near  the  mouth  of  Roosevelt  Creek,  a 
short  distance  north  of  the  foregoing  section,  shows  the  same  num- 
ber of  benches  of  lignite,  all  slightly  thinner. 
In  sec.  34,  T.  142  N.,  R.  103  W.,  on  Wannigan  Creek,  near  Bird's 
ranch,  an  exposure  of  lignite  is  3  feet  9  inches  thick.  This  is  prob- 
ably bed  E. 
In  T.  142  N.,  R.  104  W.,  bed  E  is  exposed  in  the  banks  of  Elk 
Creek,  near  Wilson's  ranch.  In  sec.  16  this  bed  measures  4  feet  4 
inches.     Farther  down  the  creek  the  section  is  as  follows: 
Section  of  bed  E  in  the  SW.  i  sec.  1,  T.  142  N.,  R.  104  W. 
Ft.  in. 
Lignite 8 
Clay 6 
Lignite 2  6 
Total  lignite 3     2 
In  T.  142  N.,  R.  105  W.,  bed  E  is  of  workable  thickness  in  a  num- 
ber of  places  and  has  been  mapped  entirely  across  the  township. 
Toward  the  northwest  it  becomes  thin,  but  to  the  east  it  is  thicker, 
as  shown  by  the  section  near  the  northeast  corner  of  the  township: 
Section  of  lignite  beds  near  the  northeast  corner  of  T.  142  N.,  R.  105  W. 
Ft.    in. 
Clays,  dark  gray,  with  irregular  black  calcareous  bands 100 
Sandstone,  yellowish,  and  gray  clay 40 
Lignite 1 
Clay,  gray,  and  yellow  sandstone  alternating 30 
Lignite 3     6 
Clay,  gray,  and  yellow  sandstone  alternating 50 
Lignite 1    4 
Sandstone  and  clay  alternating 20 
Lignite 1     2 
Sandstone  and  clay  alternating 15 
Bed  E:  Lignite 6 
Clay,  blue-gray q     q 
Lignite 1    3 
