194 REPORT UNITED STATES GEOLOGICAL SURVEY. 
No. 21. Similar grayish sandstones containing plant impressions, ex- 
posed in outlying slopes descending east from Station IX, over a space 
three-quarters to one mile across ; dip westward. 
A similar section was observed a few miles to the north, in passing 
along the ridge separating the Hast Fork and the Snake drainage, on 
the way to Station XI, which, while it is made up of the same series of 
deposits described above, exhibits some additional stratigraphic details 
not seen at the above locality. The eastern portion of the present sec- 
tion corresponds to Nos. 1 to 6 of the above section, and thence west- 
ward such exposures as occur over @ belt about three miles wide are 
noted below. 
Section through Station Xf. 
No. 1. Reddish gray sandstone, including chocolate-red shales. 
No. 2. Space. (400 yards, + —.) 
No. 3. Reddish-gray: sandstone. 
No. 4. Space. (300 yards, + —.) 
No. 5. Reddish sandstone, dip 20° to 25°, WSW. 
No. 6. Space, with ledges of gray sandstone. (700 yards, + —.) 
any 
. Dark-blue shales, resembling Bear River deposits west of Ho- 
back Cafion ridge. 
No. 8. Space. (200 yards, + —.) 
No. 9. Coarse and rather friable gray sandstone. 
No. 10. Space. (150 yards, + —.) 
No. 11. Heavy ledge of grav laminated sandstone, containing ob- 
scure ghey remains ; “dip WwW SW. 
No. 12. Space. (300 yards, + —.) 
No. 13. Light greenish-gray, shaly sandstone. 
No. 14. Space (100 yards, + —), with darkish indurated and soft light- 
colored shales interbedded with sandstones. 
No. 15. Gray and reddish tinted laminated sandstone, containing frag- 
ments of fossil wood and holding a band of partially oolitic light and 
greenish tinted chert; dip 25° about W. 20° S. 
No. 16. Space (900 yards, + —), with ledge of brownish-gray sand- 
stone containing fragments of endogenous wood, and in the upper and 
westerly portion ledges of conglomeritic sandstone apparently inter- 
bedded with soft clays and arenaceous deposits; dip WSW. 
No. 17. Sandstone; dip WSW. 
No. 18. Dark shales. 
No. 19. Space, with obscure ledges of grayish brown-stained sand- 
stone; nearly vertical. 
No. 20. Gray and brown shaly sandstone, overlaid by dark-blue shales, 
hike No. 18; dip northeastward at an angle of 50° and less. Hxposed 
in east flank of slope rising into Station XI, over a space between the 
conglomerate, No. 16, and summit, about 900 yards across. 
No. 21. Greenish-gray sandstone and chocolate-red shales, apparently 
making a heavy deposit. 
No. 22. Drab fragmentary limestone, associated with chocolate-red 
shales containing calcareous nodules. The limestone which contains a 
small gasteropod too imperfect for specific determination, appears in the 
summit of the ridge at Station XI (8,549 feet altitude) dipping at a 
moderate angle of inclination westwardly. 
No. 23. Rusty-weathered chocolate-red shales and indurated aren- 
aceous beds, exposed in the west slope of Station XI ridge; dip west- i 
ward. 
No, 24. Drab shales and indurated arenaceous beds ; dip westward 
