72 Scientific Intelligence. 



According to the report of F. M. Endlich, the geology of the 



district is very simple though interesting. Inasmuch as hut one 



somewhat simplified II. is was formed by the '"Book Cliffs," 

 between the drainage of the Grand on the south and the White 

 on the north. Both of these rivers now a little south of west, into 

 the Green River which they join in I tab. From the junction 

 of the Grand and Green downward the river is called the Groat 



liver. Toward the south these cliff- fail , 



)n the north side— with the dip of the strata- 

 rentle, although in consequence of erosion nun 

 .iiffB are formed. Descending in that directio 

 he country changes. Instead of an unbroken s 

 he plateau has been cut parallel by the Whit 

 md the long, characteristic mesas of that reg 

 iction of erosion. Approaching the river, cons: 

 vith the slight dip of the strata, the bluffs 

 ower. Though the creek valleys are wide and 

 10 doubt well' watered, the vegetation is that o 

 >warf pines, pifions and sage brush abound, to 



exclusion of other trees or grass. Travelin 



g down White Riv 



this character is again found to change. A 



new series of blufl 



occasioned by heavy superincumbent strata, 



gives rise to the fc 



.- For 41 miles the ..at 



y followed the can 



of White River, that, no doubt, is analog 



us to that of Gre 



Hiver. ami probablv c! ■ 



f the Colorado in 



detail features. Vertical nails enclose the 



larrow river-bottorr 



and the slop. tionsareonii 



mented by thousan 



of curiously eroded rocks. W ointments of 



ill kinds and figm 



that can readilv be compared to those of an 





the scenery, which would otherwise be m 





three thousand feet may be stated as the 



height of the wa 



enclo>ing the White River. 





Geologically speaking, the district was on 



9 of singular unifor 



ng to this period. Owing to the lit 

 ■rrara. water was a rare luxurv in ! 

 nals were frequently depend,';,, u 

 still, the Green Km-r -,,,• .,,. 

 - 

 The held work of the Yampah 

 Bechler as topographer and Dr. C. 

 ;ng the past season was . 



