300  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1905. 
together  in  Ridley  Gulch,  near  the  northeast  comerof  sec.  28.     The  lower  of  these  two  heels 
12  feci  thick,  is  at  the  base  of  the  coal-bearing  series  and  rests  on  massive  sandstone.     The 
other   bed,  partially  burned,  occurs  25  feet   higher  in  the  section.     Five  feet  of  coal  arer 
exposed.     A  number  of  other  prospects  have  been  made  on  coal  farther  up  the  gulch  in  the. 
same  section. 
A  coal  bed  9  feel  thick,  at  the  base  of  the  coal-bearing  series,  has  been  prospected  at  the* 
mouth  of  Trail  Gulch,  near  the  center  of  the  NE.  \  sec.  22,  T.  16  S.,  R.  7  E.  It  rests  on  i 
massive  white  sandstone  and  is  overlain  by  4  feet  of  blue  shale.  On  the  east  side  of  the 
gulch,  near  the  southeast  corner  of  sec.  15,  a  coal  bed  5  to  (>  feet  thick  is  exposed.  Farther 
up  the  gulch,  near  the  west  side  of  sec.  14,  two  prospects  are  reported  as  showing  8  feet  of 
coal.  Coals  in  the  lower-  part  of  the  series  have  been  prospected  in  many  other  localities  in 
Huntington  Canyon,  notably  in  Mill,  Crandall,  and  Tie  gulches,  in  sees.  21,  16,  5,  and  3,  T.  16 
S.,  K.  7  E. 
ConnellviTU  mine.  Coal  has  been  mined  at  various  times  for  a  number  of  years  in  Hunt- 
ington Canyon,  in  sec.  l  l,  T.  1  J  S..  K.  (i  E.  The  early  settlement  here  was  named  Con nell- 
villc.  At  the  present  time  all  habitations  are  removed  except  a  few  for  temporary  occupa- 
tion of  miners.  The  coal  is  mined  and  hauled  to  Fairview  for  domestic  consumption.  In 
the  only  mine  now  operated  I  he  coal  is  9  to  1 1  feet  thick.  The  same  bed  has  been  worked  at 
a  number  of  places  near  the  mine  and  t  he  coal  was  once  coked  in  a  few  ovens,  now  fallen  into 
decay.  Several  prospects  have  been  made  in  the  vicinity  near  the  base  of  the  series,  but 
they  were  not  open  for  inspection. 
Luis,  n  mini  .      A  coal    bed    S   feet    thick  is  located  in  the  SE.   ',    S\V.   .{•  sec.  2,  T.  15  S.,  R. 
(I  E., near  the  headof  thewesl  forkof  Huntington  Canyon.  It  is  owned  and  mined  at  the 
present  time  by  Messrs.  P.  A.  and  I>.  Larsen  to  supply  domestic  fuel  for  the  town  of  Mount 
Pleasant .  Thequality  <>f  the  coal,  as  shown  by  analysis  No.  13  (see  table,  p.  294),  isessenf  ially 
the  same  as  the  coals  tested  from  other  parts  of  the  Book  (Mill's  held.  The  coal  occurs 
between  beds  of  massive  sandstone  about  350  feel  above  the  base  of  the  coal-bearing  series. 
A  bed  of  coal  :>  feet  thick  is  reported  by  Larsen  Brothers  to  occur  about  130  feet  below  the 
mine. 
Otterson  mine.  A  coal  bed  at  the  base  of  the  series,  located  very  near  the  south  side  of  the 
NE.  S  sec.  26,  T.  17  S.,  K.  7  E.,  is  mined  occasionally  for  domestic  consumption  at  Castle- 
dale.  MMie  workable  part  of  the  bed  is  1  1  feet  ID  inches  thick,  but  is  divided  by  a  thin  part- 
ing of  shale.     The  coal  seem--  to  be  of  the  average  grade  of  coals  in  the  Book  Cliffs  field. 
Section  of  coal  <tml  associated  rocks  a'  Otterson  mine. 
Ft.    in. 
1.  Coal  crop,  weathered. 
2.  Massive  sandstone ' 50 
3.  Thin  coal  seam 
4.  Shah-  sandstone 10 
5.  Coal 1 
6.  Shale 1 
7.  (  oal 8 
8.  Shale 1 
9.  Coal,  upper  bench 5    10 
10.  Thin  shale  parting 
1 1.  Massive  coal,  lower  bench 6 
12.  Bony  coal 1 
13.  Sail' 1st  .UP' 3 
14.  Sandy  shale 4 
15.  Massive  sandstone 00-80 
Reed  mine. — A  coal  bed  near  the  same  stratigraphic  position  as  that  worked  at  the  Otter- 
son  mine  has  been  opened  for  local  use  near  the  center  of  the  south  side  of  sec.  22,  T.  17  S., 
R.  7  E.  The  coal  is  7  feet  6  inches  thick  and  rests  on  massive  white  sandstone.  The  roof 
of  the  coal  is  a  thin  bony  shale  that  is  overlain  by  60  to  80  feet  of  sandstone.  Both  the  Heed 
and  Otterson  mines  occur  in  the  cliffs  near  the  heads  of  gulches  leading  toward  the  south, 
and  arc  approached  by  steep  graded  wagon  roads. 
