262         CONTRIBUTIONS    TO   ECONOMIC   GEOLOGY,    1907,   PART   II. 
The  character  and  thickness  of  the  coal  beds  in  the  Rock  Springs 
coal  group  are  shown  in  the  following  sections: 
Sections  of  coal  beds  in  the  Rock  Springs  coal  group. 
Location. 
Section  of  coal  bed. 
Location. 
Section  of  coal  bed. 
Sec. 
T. 
R. 
Sec. 
T. 
R. 
NE.  J  NE.  i. 
19 
21 
102 
Ft.  in. 
Sandstone 10 
Covered 12 
Coal 5 
Shale 3 
30 
SE.  1  SE.  J. 
10 
21 
104 
Ft.  in. 
Shale 2 
Sandstone 4 
Coal. ...            7 
11      2 
SE.  1  NW.  1. 
14 
21 
104 
Shale 4 
Coal 7    10 
Sandstone 55 
GG    10 
SW.  i  NE.  \. 
30 
21 
102 
Shale 7 
Coal 8 
Shale 10 
Coal 2      G 
11 
SE.  i  SW.  L 
22 
21 
104 
Shale 3 
Coal G 
Shale 1 
Coal 1 
Shale 8 
Clay 1 
Coal G 
SW.JSW.i 
32 
21 
102 
Shale 4 
Sandstone....    2 
Coal 5      0 
Sandstone 4 
15      G 
13    2 
4 
21 
103 
Sandstone 6 
Shale... 11 
Coal 8 
Shale 5 
30 
NE.  \  NE.  \. 
SE.  i  SE.  i. 
27 
21 
104 
Sandstone 2 
Shale 1 
Coal 1      8 
Shale 4 
Coal 4 
8 
21 
21 
103 
Shale 1 
Coal 1 
Shale 4 
Sandstone..           8 
Coal 4      5 
"T7 
12      8 
NW.JNE.  J. 
NW.  1  SE.  \. 
34 
21 
104 
Shale G 
Coal 1 
Shale 1      G 
Coal 4 
12      G 
SE.JNE.i 
9 
103 
Sandstone 5 
Coal G 
_____ 
SW.  |  SE.  i. 
34 
21 
104 
Coal 3      G 
Shale 4      8 
Sandstone 1      2 
9      4 
12 
21 
103 
Sandstone 5 
Shale 1      G 
Coal 8 
Shale 1 
Coal 5      G 
13      8 
NW.  \  SW.  J. 
SW.  i  SW.  J. 
35 
21 
104 
Sandstone 12 
Shale 8 
Coal 7 
Shale 30 
57 
Almond  coal  group.— The  Almond  coal  group  is  of  second  impor- 
tance in  this  field.  The  coals  are  not  so  good  as  those  of  the  Rock 
Springs  group,  and  up  to  the  present  time  have  not  been  developed. 
The  Almond  coal  group  is  prolifically  coal  bearing.  It  consists  of 
beds  of  carbonaceous  shale,  clay,  and  brown  and  gray  sandstone, 
with  numerous  beds  of  coal.  Several  coal  beds,  from  2  to  8  feet  thick, 
have  been  prospected  in  various  parts  of  the  field. 
Mines  were  opened  in  these  beds  just  east  of  Almond,  or  Point  of 
Rocks,  when  the  Union  Pacific  Railroad  was  first  built.  They  were 
soon  abandoned,  however,  and  not  reopened  until  the  summer  of  1907. 
The  old  No.  6  mine  at  Rock  Springs  was  opened  in  these  beds,  oper- 
