HARMONY,   COLOB,  AND  KANAB  COAL  FIELDS,   UTAH.  399 
measures  in  most  places  is  easily  reached.  But,  on  the  other  hand, 
this  field  is  far  distant  from  an  immediately  prospective  market  of 
any  consequence. 
OCCURRENCE    AND    THICKNESS    OF    COAL. 
In  the  Kanab  as  in  the  Colob  field,  coal  occurs  in  the  lower  part  of 
the  Cretaceous  section,  and  the  same  buff  sandstone-shale  series, 
within  a  hundred  feet  or  so  above  the  basal  Cretaceous  conglomerate 
which  overlies  the  Jurassic  varicolored  shale  and  gypsum,  can  be  used 
as  a  guide  in  prospecting.  In  addition  to  the  lower  coal,  another  bed 
4  feet  5  inches  thick  occurs  several  hundred  feet  higher,  on  which  a 
prospect  pit  (No.  17)  has  been  opened  about  3  miles  southwest  of 
Upper  Kanab. 
The  main  coal  horizon  in  many  places  can  be  easily  traced  by  the 
dark  streak  caused  by  the  outcrop  along  the  hillsides,  but  very  little 
prospecting  has  been  done.  Two  openings  have  been  made  on  the 
coal  in  the  valley  of  Kanab  Creek,  about  5  miles  south  of  Upper 
Kanab.  At  the  old  Siler  prospect  (No.  19),  in  sec.  25,  T.  39  S., 
K.  6  W.,  the  drift  had  caved  in,  but  in  the  Johnson  prospect  (No.  18), 
about  one-half  mile  to  the  northwest,  the  following  section  was 
measured : 
Section  of  coal  beds  in  Johnson  prospect  (No.  18). 
Shale,  drab.  Ft.    in. 
Coal 1      6 
Bone 3 
Coal 1 
Bone 1 
Coal 7 
Limestone 3 
Coal 3     11 
Shale,  carbonaceous. 
Total  coal 7 
No  other  test  pits  were  found  in  the  Kanab  field  within  the  area 
studied  in  1907.  Apparently  the  coal  thins  out  east  of  Kanab 
Creek,  and  there  is  an  area  of  barren  rocks  that  extends  an  indefinite 
distance  beyond  the  limits  of  the  region  mapped  (PI.  XXV),  in 
which  coal  of  workable  thickness  has  not  been  found.  The  following 
section,  measured  near  the  east  end  of  the  area  studied,  shows  the 
greatest  thickness  of  coal  found  in  that  vicinity: 
Section  of  coal  beds  in  the  NW.  i  sec.  35,  T.  40  S.,  R.  5  W. 
Shale,  carbonaceous.  Ft.  in. 
Coal  and  bone 1  9 
Shale,  carbonaceous 3 
Coal 1  6 
Shale,  carbonaceous 2  3 
Total  coal  and  bone 3      3 
