APPENDIX TO THE REPORT OF THE SECRETARY. ,73 



intending to make a station on a high peak of the Yellowstone Eange, 

 near the head of the latter stream. The snow, however, which had 

 been accnmulating for a month in that high mountain region, had be- 

 come at that time (about the end of September) so deep that it was im- 

 possible to do any more work. Indeed, it had accumulated so in the 

 ])asses about the heads of the Upper Yellowstone, Snake, and Wind 

 Elvers, that the party found dithculty in getting their animals over 

 them. Finally, however, the party reached the head of Wind Eiver, 

 and thence traveled to Eawlins, Wyo., on the Union Pacihc Eaiiroad, 

 where they were dislianded. 



Topography. — To the party in charge of Mr. Henry Gannett was in- 

 trusted the work of making a detailed survey of the Yellowstone Park, 

 with extended study of the phenomena of the hot springs and geysers. 

 ]\Ir. W. H. Holmes was detailed as geologist of this division, while to 

 Dr. A. 0. Peale was intrust?ed the study of the hot springs and geysers, 

 Mr. Gannett undertaking the secondary triangulation and topography 

 of the park, and his assistant, Mr. J. E. Mushbach, the detailed survey 

 of the geyser basins and other groups of springs. 



The party left Granger Station, Wyo., on July 28; drove up Green 

 Eiver to the head of the basin; thence down the rugged defile of Ho- 

 back's Eiver to the Snake, and up the Snake to its forks at the south 

 boundary of the Yellowstone Park. 



Turning westward at this point, they spent a few days in surveying 

 Pall Eiver and its afduents, then returned to the Shoshone Geyser Ba- 

 sin at the west end of Shoshone Lake. Here the party was joined by 

 ]\rr. Holmes, who up to that time had accompanied Dr. Hayden in the 

 Wind Eiver and Teton ]Mountains. 



Lea\ing the body of the party in permanent camp at the Shoshone 

 Geyser Basin, Messrs. Holmes and Gannett visited the Eed Mountains 

 and the country south of Yellowstone Lake. On their return from this 

 trip, which occupied a Aveek, the party, re-enforced by that of Mr. Jack- 

 son, moved across the divide to the Upper Geyser Basin, near the head 

 of the Madison (Fire Hole) Eiver. Here Dr. Peale and IMr. Mushbach 

 were left to carry on their work, while the party continued on down the 

 Fire Hole Eiver to the Lower Geyser Basin. Thence they crossed to the 

 Yellowstone Eiver via Howard's road, and continued down that river 

 to tbe Mammoth Hot Springs on Gardiner's Eiver, where the supplies 

 for the season were stored. 



Eetitted with provisions, the party returned up the Yellowstone as 

 far as the mouth of its east fork, which they ascended nearly to its head 

 in the ragged Yellowstone Eange; then crossed a high, rolling divide 

 to l^elicau Creek, a tributary to Yellowstone Lake. Following this 

 stream down they reached Yellowstone Lake at its northeastern corner, 

 skirted its eastern shore to its head, and traveled several miles up the 

 Upper Yellowstone Eiver ; thence they returned to the foot of the lake 

 and followed the river down to the Mammoth Hot Springs, arrixing 

 there about October first. 



