488 



EEPOET UNITED STATES GEOLOGICAL SURVEY. 



LOTVER GEYSER BASIN". 

 [Latitude, 44°.35'; longitude, 110°.50'; elevation, 7,236 feet.] 



Date. 



Temperature. 



Eelative humidity. 



Min. 

 temp. 



Kemarks. 



7 a.m. 



2 p.m. 



6 p.m. 



7 a.m. 



2 p.m. 



6 p.m. 



September 30.. 



32 

 32 

 28 

 20 

 19 



21 



24 

 38 

 30 

 42 

 24 

 25 

 41 



46' 



33 

 40 

 37 

 39 

 35 



38 

 44 

 50 

 44 

 51 

 33 

 45 

 39 











Snowed all night and day. 

 Flurries of snow all day! 









30 



21 



8 



16 



18 

 22 

 29 

 30 

 33 

 21 

 23 

 31 

 31 



2 









3 









Clear. 



4 









Weather threatening, witli 

 flurries of snow. 

 Do. 



5 









6 









Do. 



7 









Do. 



8 . .. 









A little snow last night. 

 Snow last night. 

 Flurries of snow. 



9 









10 









11 









Clear. 



12 









Snowing most of day. 

 Do. 



13 



37 

























MEANS OF ACCESS, ROADS, TRAILS, ETC. 



There are well-marked roads or trails connecting most of the points 

 of interest in the Park, while in cases where there are none the char- 

 acter of the country is such that one has no trouble in going wherever he 

 pleases, so that few parties have taken the trouble to follow any estab- 

 lished trail, preferring to select their own routes. 



From Bozeman to the Mammoth Hot Springs, on Gardiner's Eiver, 

 there is an excellent wagon road. At the springs there are several log 

 houses, used in part for the entertainment of travelers. The sleeping 

 accommodations at present are very primitive, consisting, in lieu of a 

 bedstead, of 12 square feet of floor-room. Every guest is expected to 

 provide his own blankets. We are too far west for bed linen. Cook- 

 ing arrangements are correspondingly simple. The frying-pan is the 

 universal utensil, serving to cook everything from bread to meat. The 

 fare is simple, and remarkable for quantity rather than quality or 

 variety. 



From these springs an excellent pack-trail starts up the Yellowstone, 

 also a wagon trail to the Geyser Basins on the Firehole Eiver. The 

 former follows up Gardiner's Eiver and its eastern fork for several 

 miles, then strikes off across the plateau of the Third Canon towards the 

 Yellowstone, reaching it at Baronette's Bridge. On the plateau it is 

 joined by a trail coming from the mouth of Gardiner's Eiver. At the 

 bridge it forks, one branch crossing the river and following up the East 

 Fork of the Yellowstone. From the latter a trail goes up Slough Creek, 

 crossing at its head to the Eosebud. Another passes up Soda Butte 

 Creek to the mines on the head of Clark's Fork of the Yellowstone, 

 which are at the base of the two larominent mountains— Index and Pilot 

 Peaks — while the main trail, a few miles above the mouth of Soda 

 Butte Creek, leaves the East Fork, climbs the abrupt mountain on the 

 west, and continues southward along the divide between the Yellow- 

 stone and its East Fork for several miles, finally descending to the head 

 of Pelican Creek, which it follows down nearly to Yellowstone Lake. 



The portion of this trail between the valley of the East Fork and that 

 ot Pelican Creek is very faint and difficult to follow. Indeed, it is here 

 noted rather as a practicable route than one as yet marked by a trail. 



The trail up the Yellowstone, on leaving the bridge, continues on the 

 west side of the river, and at first quite near it. It crosses Tower Creek 

 just above the Falls. Then it ascends, by a very easy grade, the long 



