802 GEOLOGICAL SURVEY OF THE TERRITORIES. 



List of elevations on the West Gallatin River. 



At forks of West Gallatin, near bead, latitude 45°. 



At camp 35, iu latitude 45'^ 



At camp 3:5 



At camp 32 



At bridge 



Mouth 



15' 



Miles from 

 mouth. 



93 

 67 

 52 

 44 



20 



Elevation. 



«, 823 

 6, 149 



5, 58li 

 5, 215 

 4, 493 



4,098 



Fall per 

 mile. 



Feet. 



42.1 

 37.5 

 4(i. 4 

 21.8 

 19. 8 



Miscellaneous elevations on streams. 



East Gallatin, at Fort Ellis 



Bridger Creek, near head, (camp 41) 



Bridger Creek, in Bridger Canon 



Pass Creek, at foot of Flathead Pass, (camp 43) 



Cottonwood Creek, where it issues from the mountains.. . 



Bozonian Creek, where it issues from the mountains 



Middle Creek, near head 



West branch of Shield's Riv^er, at head 



Head of Clark's Fork of the Yellowstone 



Head of Slough Creek 



Slough Creek, hfteen miles below mouth of Buffalo Creek 



vSlough Creek, four miles more 



Slough Creek, mouth 



Cascade Creek, at camp 11 



Height of Lower Falls, (feet) , 



Height of Crystal Falls, on Cascade Creek, (feet) . 



Elevat 

 4, 



5, 



*5, 



5, 



6, 

 5, 



*8, 

 *7, 

 *«, 

 *(), 



*5, 

 *7, 



ion. 



934 



56(i 



080 



713 



433 



247 



831 



94() 



236 



936 



386 



336 



986 



909 



132 



129 



* Measured by aneroid. 



On routes for roads from the settlements to points of interest in the Yelloiv- 



stone National FarJc. 



The only routes iu use at preseut are the Yellowstone and Madison 

 routes, neither of which is at present, practicable for wagons. The for- 

 mer, starting- from Bozemau, crosses the Yellowstone near Butler's 

 Eanch, thence follows the river as closely as may be. By this route a 

 wagon-road already extends to the mouth of CaQoii Creek, which in the 

 latter part of July was 18 inches deep and 60 feet wide. 



In the second cafion, the mountains which form the west wall come 

 down to the water's edge, very steep and rugged, and the passage of it 

 with a wagon-road will involve considerable outlay in blasting and em- 

 bankment. The east side is comparatively easy of passage, but this 

 ■would involve throwing two bridges across the river, which is here, at 

 the lowest stage of the water, 500 feet in width. This canon is about 

 eight miles in length, three-fourths of which, however, present no great 

 obstacle to a road. Above this canon the valley is level and open, with 

 no timber as far as the foot of the third canon, at the mouth of Gardi- 

 ner's Eiver. From this point to the Hot Springs, on Gardiner's River, a 

 distance of about, seven miles, a road can easily be made, though it 

 must cross two high spurs from Sepulchre Mountain. 



The trail up the Yellowstone crosses Gardiner's River by a bridge, then 

 ascends the plateau above the third canon. This asoent is -s ery steep, 

 and a wagon-road will require much grading. On the top the plateau is 

 quite level, without timber. The trail keeps the top of the plateau as 

 far as Cach6 Valley, near the mouth of East Fork, to which it descends 



