YAMPA    COAL    FIELD,    COLORADO.  283 
About  75  feet  below  this  seam,  in  the  same  group,  is  another  seam  (M)  which  measured 
|1  feet  5  inches.  A  sample  of  this  coal,  for  analysis  representative  of  the  whole  face,  was 
[so  taken: 
Analysis  of  11 -foot  seam  (Sample  M)  in  Sage  Canyon. 
[F.  M.  Stanton,  analyst.] 
Moisture 11. 03 
Volatile  matter ;;;,.  s:. 
Fixed  carbon 47. 40 
Ash 5.  66 
100.00 
Sulphur 52 
Loss  of  moisture  on  air  drying 2. 70 
These  openings  are  on  the  eastern  or  steep  side  of  the  anticline.  About  H  miles  up  the 
reek,  on  a  small  side  gulch  from  the  east,  is  a  prospect  on  a  seam  of  the  lower  group,  show- 
tg  about  10  feet  of  coal.     This  dips  at  an  angle  of  35°  NE. 
Dry  Creek  district. — The  coals  exposed  along  Dry  Creek  are  of  the  upper  group  and  lie 
gainst  the  west  flank  of  the  Sage  Creek  anticline.  These  coals  have  been  opened  at  a 
umber  of  places,  and  one  entry  (P)  was  being  worked  to  supply  the  Hayden  market  at 
:ie  time  of  visit.  A  sample  of  this  seam,  representing  7  feet  10  inches  of  solid  coal  that  was 
eing  mined,  was  taken  for  analysis: 
Analysis  of  coal  (Sample  P)  from.  Dry  Creek. 
[F.  M.  Stanton,  analyst.] 
Moisture If).  74 
Volatile  matter 33. 37 
Fixed  carbon 46. 77 
Ash 4.12 
100. 00 
Sulphur 41 
Loss  of  moisture  on  air  drying 0. 20 
The  whole  section  of  the  upper  group  as  exposed  in  this  vicinity  was  measured  as  follows: 
Section  of  upper  coal  group  on  Dry  Creek. 
Heavy  white  sandstone.  Ft.   In. 
Shale 3 
Coal 3 
Parting 1 
Coal  (mined) 7    10 
Shale 12+ 
Coal 2 
§one 
Coal 2 
Sandstone 4 
Shale,  sandy 4 
Coal 5      3 
43    10 
From  the  Dry  Creek  openings  the  road  runs  in  a  southerly  directon  across  the  Williams 
ork  divide  and  thence  down  Hayden  Gulch.  On  the  north  side  of  the  summit  the  road 
allows  the  outcrop  of  the  upper  coal  group  for  several  miles.  These  coals  have  been  largely 
»urned  at  the  outcrop,  as  have  many  of  the  seams  outcropping  to  the  south  and  west,  of 
his  district.  In  such  cases  the  coals  are  marked  by  banks  of  reddened  shale  and  sandstone 
Lnd  often  by  clinkers. 
Williams  Fork  divide  district. —On  the  south  or  Williams  Fork  side  of  the  summit  of 
he  public  road  the  trend  of  outcrop  changes  and  all  three  coal  groups  turn  across  Hayden 
£ulch,  as  is  represented  on  the  map.  About  1  mile  from  the  mouth  of  this  gulch  openings 
lave  been  made  on  seams  of  the  lower  group,  which  have  been  worked  by  the  settlers  from 
