130 J. J. Stevenson—Laramie Group of Southern Colorado. 
that the process of tying together the fragmentary local vertical 
sections 1s a painful one. 
But 
the 
cafions crossing or deeply 
indenting the field are ey eal and are separated by narrow 
intervals; they afford ample opportunity for verification of the 
sections, and - seems hardly possible for serious errors to 
escape detect 
The beekicts or the group is approximately as follows: 
he 
SelON SO ron pr 
eal all all aediloed 
FAP Se 
17 
l be es 
. Sandst’e and aes 13’ to 20° 
. Coa 3” 
. Sandstone and ae 
. Coal bed R’, 
. Shale = sandat’s, 25' to 35' 
. . . . . . . ce 
LPAPRPRPRDS 
~ 
. Sandstone and shale, 
440 
Blossom. 
Sandstone and shale, s & fd 
Coal Bloss ssom. 
Sandstone and shale, 
al 
Great Sandstone, 
Coal bed Z, 
Shale and sandstone, 
C 
é 
Sandstone and Shale, 26’ 
6' to 4’ 
oal bed W, 
1. Sandst’e and Shale, -s fr sa 
Coal bed V, 0” |48 
Gente’ e and shale, a0! re ae 
Canadian coal bed’ U, 6’ to 4” 
shies ee and shale, 20! to 30’ 
aT, ' to 
to 10” 
14 
Yaliente coal bed R, 16’ to 1’ 
al 
sandstone and shale, 
oal bed P, 2' 6" to 1’ 
sandst’e and shale, 40’ to 50’ 
Joal be 0” 
sandstone and shale, 30’ 
Joal bed N, Q! 
andst’e and shale, 33’ to 43’ 
Cameron coal bed M, 33' to 4” 
ome and shale, 22! jbo 27" 
Coal 
bed L, 
. 8 andst’e and shale, ef to 7 a 
es 
2 
Coal bed J’, Blos: 
39. 
40. 
41. 
142, 
I, 
43, Sandstone and ihels. 
al bed H', 
Sandst’e and shale, 44’ to 52’ 
Long’s cation coal bed J, “ 
Sandst’e and shale, 45’ to "83! 
Coal bed 2’ 6” to 2” 
50’ 
44, Coal 
. Upper Vermejo coal bed G 
2 
. Sandst’e and shale, 20’ to 45' 
4, a coal bed A, 6. 6" <5 
. 1’ to 
: Halyrieities Jagan 
. Shale and emcee 
Sandst’e and shale, 50’ to 60’ 
: a Claw Catton er 
to 2” 
Sandét’s and shale, 90’ rb ua! 
9" 
—. and shale, 60’ 1 120’ 
er Vermejo coal te 
o 4" 
Sh ale, mee 
Coal bed E" s 
Shale and sandstone, 
Coal 
Shale and sandstone, 25 
pper Reilly coal bed E, 
7’ 8" to 2” 
. Sandst’e and shale, 18’ to 31’ 
8. Lower Reilly coal bed = 
o 2” 
Sandst’e and PO 19 4s 5 54! 
Willow Creek coal bed C, 
9! gi!” to 1 
Sandst’e and shale, 7 76" to 100’ 
Trinidad coal bed B, 
16" a" to V 
t 
to 80° 
70’ 
The total thickness of cp group, as shown in this field, is 
not far from 1800 fee 
