802 GEOLOGICAL SUEVEY OF THE TERRITORIES. 



List of elevations on the West Gallatin River. 



At forks of West Gallatin, near head, latitude 45° 



At camp 35, in latitude 45° 15' 



At camp 33 



At camp 32 



At bridj^e 



Mouth 



Miles from 

 mouth. 



Elevation. 



93 

 67 

 52 

 44 



20 



(i, 823 

 6,149 



5,215 

 4,493 



4,098 



Fall per 

 mile. 



Feet. 



42.1 

 37.5 

 46.4 

 21.8 

 19.8 



Iliscellaneous elevations on streams. 



Elevation. 



East Gallatin, at Fort Ellis 4,934 



Bridger Creek, near head, (camp 41) 5,566 



Bridger Creek, in Bridger Caiion *5, 080 



Pass Creek, at foot of Flathead Pass, (camp 43) .• 5, 713 



Cottonwood Creek, where it issues from the mountains 5,433 



Bozeman Creek, where it issues froiia the mountains 5, 247 



Middle Creek, near head 6, 831 



West branch of Shield's River, at head 5, 946 



Head of Clark's Fork of the Yellowstone *8,236 



Head of Slough Creek *7, 936 



Slongh Creek, fifteen miles below mouth of Buffalo Creek *6, 386 



Slough Creek, four miles more *6, 336 



Slough Creek, mouth ... *5, 986 



Cascade Creek, at camp 11 *7, 909 



Height of Lower Falls, (feet) : 132 



Height of Crystal Falls, on Cascade Creek, (feet) , 129 



* Measured by aneroid. 



Oil routes for roads from the settlements to points of interest in the Yellow- 



stone National FarJc. 



The ouly routes in use at present are the Yellowstone and Madison 

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

 mer, starting from Bozeman, 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 Canon Creek, which in the 

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



In the second caiion, 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 caiion is about 

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

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

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

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

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

 must cross two high spurs from Sepulchre Mountain. 



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

 ascends the plateau above the third caiion. This ascent is very 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 



