File:Annual report. 1st-12th, 1867-1878 (1867) (14579489368).jpg

Identifier: annualreport1st110geol (find matches)
Title: Annual report. 1st-12th, 1867-1878
Year: 1867 (1860s)
Authors: Geological and Geographical Survey of the Territories (U.S.) United States. General Land Office United States. Dept. of the Interior
Subjects: Geology
Publisher: Washington, Govt. Print. Off.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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olhave been washed from the Battlement mesa. I did not uthe north side. The steepness of the cliffs on the north siddeep gullies to be cut by the small branches of the Gramon the south side are more rounded, and the stream-beds rdepth. In Cactus Valley we found the variegated beds formingfacing the river, and low hogbacks inclining from the GraiRange. This, however, lies in Dr. Endlichs district, idescribed by him. The only portion of the district remadescribed is the Little Book Cliffs, through which Grancits hogback canon from the mouth of Plateau Creek to (Valley. LITTLE BOOK CLIFFS. The Little Book Cliffs extend from Grand River northEast Salt Creek, a distance of some thirty miles. Fig.gives a view of the cliffs as seen from the south side of the <cliffs are about 1,800 feet in average height. Near the Gilowing is the section (point c f in Fig. 3, Plate X). The thimeasured by angles taken with the gradienter from a sUsouth side of the Grand. U. 8. Geologicnl Survey Hat-r XL ^
Text Appearing After Image:
peale.) AEEA B LITTLE BOOK CLIFFS. 177 Section. Base. Feet.Upper part of ( 1. Black and yellow shales, with lime- ) Sft(> Colorado Cretaceous. ( stones ? J ^ 2. Yellow sandstone, forming an indis- ) tinct escarpment ; I 3. Yellow shales and sandstones, with )> 710Fox Hills Cretaceous.^ a band of lignite near the upper ; I part ■. 34. Sandstone )5. Shaly beds \ 380 Laramie % 6. Pinkish sandstones ) Total 1, 890 These beds dip to the northeast at an angle of about 8°. As we tracelayer No. 2 toward the northwest along the cliffs it becomes somewhatindistinct. The beds also, as seen from Station 4, appear to sink, andthe Laramie sandstones undoubtedly form the escarpment at the sum-mit of the cliffs. Still farther along, the beds rise again. East of Station 4 and back of the first liue of cliffs a second line isnoted, in which the beds are the variegated shales and sandstones ofthe Wahsatch Group. The sketch in Fig. 3, Plate X, is taken from toolow a point to show this line of cl

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