[The numbers in parentheses denote elevations. These are taken from the latest map by the United States Geological Survey, and are the same as that of the one hundred foot contour nearest the summit. The true elevation of the ultimate peak is in each case slightly greater, lying somewhere between the figure given and an altitude one hundred feet higher.] _Abiathar Peak_ (10,800)--C: 14--1885--U. S. G. S.--For Charles _Abiathar_ White, Paleontologist, U. S. Geological Survey. _Absaroka Range_, A-X: 12-16--1885--U. S. G. S.--This range of mountains has had an unfortunate christening history. It was first known as the Yellowstone Range, from its close relation to the Yellowstone River, of which it is the source. The original name dates from as far back as 1863, and was adopted by the first explorers of the Park country. It was officially recognized in 1871, by both the Corps of Engineers and the United States Geological Survey. When the Park was created this range became its real eastern boundary, and many of its peaks were named for those who had borne prominent parts in its history. The name had thus an added claim to perpetuity. It passed into general use, and appears in all the writings of the United States Geological Survey down to 1883. In 1873, Captain W. A. Jones, of the Corps of Engineers, led an expedition through these mountains--the first that ever crossed them. He gave them a new name, "Sierra Shoshone." Except for the fact that he was violating the rule of priority, his action in giving this name, as well as his judgment in its selection, were of unquestionable propriety. It was a tribe of the Shoshonean family who alone dwelt in the Park, or among these mountains, and it was entirely fitting to commemorate this fact in a distinct and permanent manner. The name passed rapidly into public use, and by 1880 had practically supplanted the original name.