LATER EXPLORATIONS.
As soon as the remarkable character of the country about the sources of the Yellowstone became generally known, there was a rush of explorers to its borders. Every expedition that could possibly extend the field of its labors in that direction did so, and there was scarcely a summer during the next twenty years that the Park was not the scene of some official exploration or visit.
By far the most important of these were the various expeditions under the United States Geological Survey. Dr. Hayden was again in the country with two parties in 1872, and very widely extended the range of observations of the previous year. In 1878, survey parties again entered the Park and resumed work there on a much more minute and extensive scale. The result of that year’s explorations appeared in 1883 in the form of an elaborate report by Dr. Hayden and his co-workers, which entered with much detail into the more important subjects of scientific interest. It was embellished with a great number of engravings and colored plates, and with an exhaustive series of topographical and geological maps. The work was again taken up in 1883, and was continued for several years. All questions of scientific importance were investigated more thoroughly than ever before, and many valuable official reports and monographs, together with a superb map, have been the result.
In 1872, General John Gibbon, U. S. A., with a considerable party, made a tour of the Park, passing by the usual route from Mammoth Hot Springs via Mt. Washburn, the Grand Cañon, and the Lake, to the Firehole Geyser Basins. On his way home he attempted to ascend the north Fork of the Madison, following an old trail; but he abandoned the attempt after going a few miles. His name, which was given to the river, has also attached to many other features along that valley.
In 1873, Captain William A. Jones, of the Corps of Engineers, passed through the Park as part of a more extended reconnaissance. He was the first to carry a party through the “impassable barrier” of the Absaroka Range. Jones Creek, just east of the northern portion of the Yellowstone Lake, shows where the party entered the Park. From the Lake the expedition passed down the east bank of the river to the valley of Junction Butte; thence west to Mammoth Hot Springs; thence back over the usual trail via Tower Creek, Mt. Washburn, the Grand Cañon and Mud Geyser, to the Lower Geyser Basin; thence via the Upper Basin to the west shore of the Yellowstone Lake; thence to the Upper Yellowstone River; thence through Two-Ocean Pass and Two-Gwo-Tee Pass to the valley of Wind River. The chief results of this expedition, in the line of original discovery, were the passage of the Absaroka Range, the verification of the traditional “Two-Ocean Water,” between Atlantic and Pacific Creeks, in Two-Ocean Pass, and the discovery of the extremely easy pass (Two-Gwo-Tee [AI]) over the Continental Divide, between the Snake and Wind Rivers. Prof. Theodore B. Comstock accompanied the expedition as geologist. A valuable report of the reconnaissance appeared in 1875. [AJ]
[AI] So named by Captain Jones for one of his Indian guides.
[AJ] See [Appendix E].
In 1875, Captain William Ludlow, of the Corps of Engineers, made a reconnaissance from Carroll, Montana, on the Missouri River, to the Yellowstone Park and return. In the Park he followed the previously traveled routes and developed little in the line of original discovery. He succeeded, however, in obtaining a very accurate measurement of the height of the Yellowstone Falls, and his report [AK] forms one of the ablest brief descriptions of the Park extant. Among his civil assistants was George Bird Grinnell, now widely known as the editor of Forest and Stream, and as one of the most steadfast and watchful guardians the Park has ever had.
[AK] See [Appendix E].
During the same season a distinguished party, consisting of the Secretary of War, Gen. W. W. Belknap, and several prominent officers and civilians, with Lieutenant G. C. Doane, of National Park fame, as guide, made a complete tour of the Park. An exceedingly interesting narrative [AL] of the trip was written by Gen. W. E. Strong, who was a member of the party.