YAMPA    COAL    FIELD,    COLORADO.  229 
Section  of  upper  c  >al  bed  at  James  mi  in  . 
Shale,  dark.  pt     In_ 
Coal 5 
Clay,  white i 
Coal  (base  not  reached) 71 
7        6+ 
The  next  or  middle  coal  seam  was  not  accessible,  and  consequently  was  not  measured. 
i  An  incomplete  section  of  the  lower  seam,  as  shown  in  the  principal  opening  at  this  point,  is 
!  as  follows: 
Section  of  lower  coal  bed  at  Janus  mine. 
Ft.  In. 
Coal,  good,  bright; 3    '2 
Coal,  dirty 3 
Coal,  flaky 10 
Clay,  white i 
Coal,  good,  bright  (base  not  reached) 1      11+ 
5      5+ 
Farther  down  the  creek  a  coal  bed  also  belonging  to  the  lower  coal  group  is  opened  by 
the  side  of  the  road  leading  from  Yampa  to  Eddy  post-office.  This  opening  is  generally 
known  in  the  region  as  the  Shuster  mine  (A).  An  entry  has  been  driven  in  on  the  coal  bed 
for  several  hundred  feet  and  a  large  amount  of  coal  has  been  taken  out  for  local  use.  At 
the.  time  of  the  visit  the  coal  was  being  hauled  from  this  point  to  Steamboat  Springs  for  use 
in  the  electric-light  plant.     The  section  of  the  coal  bed  in  this  mine  is  as  follows: 
Section  of  coal  bed  in  Shuster  mine. 
Ft.  In. 
Coal 3      3 
Shale,  carbonaceous 1      6 
Coal 1  11 
Clay 1 
Coal 4      9i 
11      6h 
The  seam  dips  in  general  to  the  northwest,  at  an  angle  of  about  20°.  A  sample  was  taken 
at  this  mine  for  chemical  analysis.  It  was  obtained  by  making  a  cut  across  the  face  of  the 
coal  in  one  of  the  rooms  of  the  mine,  and  it  includes  all  of  the  two  lower  benches  of  the  coal, 
exclusive  of  the  clay  parting. 
Analysis  of  coal  (sample  A)  from  Shuster  mine.® 
[F.  M.  Stanton,  analyst.] 
Moisture 8. 85 
Volatile  matter 36.06 
Fixed  carbon 50. 19 
Ash 4.90 
100.00 
Sulphur 1. 51 
Loss  of  moisture  on  air  drying 2.30 
Below  the  Shuster  mine  the  coal  beds  of  the  lower  group  have  been  opened  in  a  number 
of  places  along  Oak  Creek,  but  the  most  important  development  has  been  at  the  point 
where  the  Oak  Creek  leaves  the  coal  field  and  turns  east  toward  Yampa  River.  Here  a  great 
deal  of  mining  has  been  done  in  the  past.  The  only  mine  now  operating  at  this  point  is  one 
on  the  south  side  of  the  creek,  owned  and  operated  by  the  Steamboat  Springs  Electric  Com- 
pany (X).     The  coal  is  considerably  crushed.     At  the  time  this  mine  was  visited  it  was 
a  Samples  for  analysis  were  taken  in  a  uniform  manner  throughout  the  field.  A  face  of  the  coal  seam 
was  first  cut  down  so  as  to  expose  fresh  coal.  A  channel  was  then  cut  across  the  whole  seam,  only  that 
part  which  would  be  saved  in  actual  mining  or  such  as  appeared  to  be  good  merchantable  coal  being 
saved  for  the  sample,  and  all  bony  seams  and  partings  being  thrown  out.  This  large  sample  was  pul- 
verized and  quartered  down  to  convenient  size  at  the  mine  and  there  sealed  in  an  air-tight  galvanized- 
iron  can.  The  analyses  were  made  under  the  supervision  of  Prof.  N.  W.  Lord,  ot  the  Ohio  State  I  ■111- 
versity,  at  the  laboratory  of  the  United  States  Geological  Survey  coal-testing  piano,  St.  Louis,  Mo. 
