234         CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,    1907,   PART   II. 
Sections  of  coal  beds  in  the  undifferentiated  Tertiary  deposits — Continued. 
No.  on 
PI. 
XII. 
Location. 
Section  of  coal  bed. 
Sec. 
T. 
R. 
45 
SW.iSW.i. 
24 
21 
89 
Ft.  in. 
Shale 5 
Coal,  impure 11 
Sandstone 6 
Coal,  good 3 
Shale 1 
Coal,  good 3+ 
Abandoned  mine. 
6    1  + 
46 
SW.iSW.i. 
12 
21 
89 
Sandstone. 
Coal,  impure 6 
Surface  exposure. 
47 
SE.iSW.i. 
35 
22 
89 
Shale 4 
Coal,  impure 2    6 
Coal,  good 6 
Shale 2 
Coal,  impure 3 
Shale 6 
Coal,  impure 1 
Shale 3 
Surface  exposure. 
19    3 
48 
SE.iNE.i. 
18 
24 
89 
Shale 1 
Coal 2    6 
Shale 1    4 
Coal 1    2 
Surface  exposure. 
6 
49 
NE.^SE.i. 
20 
26 
90 
Shale 11 
Coal,  good 4    1 
Shale 2    6 
Coal,  good 4 
Shale 1 
Coal,  impure 6 
Shale 11 
Coal,  good 5 
Abandoned  mine. 
15    3 
60 
SW.iSW.i. 
9 
20 
91 
Shale. 
Coal 4 
Shale. 
Surface  exposure. 
51 
NW.JSE.J. 
10 
20 
91 
Shale,  carbonaceous ...    4 
Coal 6    4+ 
Entry  75  feet  long.    Down  dip 
of  7°. 
10    4+ 
o52 
SE.£SW.  \. 
12 
20 
91 
Sandstone 3 
Coal,  impure. 1    5 
Shale 1 
Coal,  fair 4    2 
Shale 4 
Coal,  fair 6 
Bottom  not  exposed     
15  11 
Surface  exposure. 
a  This  section  is  south  of  the  Union  Pacific  Railroad  and  lies  in  the  area  mapped  by  M.  W.  Ball.  (See 
pp.  243-255.) 
WASATCH    FORMATION.0 
The  basal  member  of  the  Wasatch  near  the  Union  Pacific  Railroad 
is  very  thin  and  contains  numerous  small  granite  pebbles.  It  thick- 
ens to  the  north  and  contains  more  and  more  conglomerate  until  in 
a  These  beds  represent  the  lower  part  of  the  Wasatch  group  of  Hayden  (Rept.  U.  S.  Geol.  Survey 
Terr,  for  1877,  1879,  pp.  127-129).  They  also  represent  the  lower  part  of  the  Vermilion  Creek  group  of 
King  (U.  S.  Geol.  Expl.  40th  Par.,  vol.  1,  1878,  pp.  360-377),  and  have  been  traced  into  the  type 
section  on  Vermilion  Creek  in  northwestern  Colorado. 
