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162 imperceptibly, that now we unexpectedly find ourselves upon the summit. The distance from Fort Laramie is 320 miles, from St. Louis 1580, and from the mouth of the Oregon about 1400: it is therefore nearly midway between the Mississippi and the Pacific. The dimensions of this memorial spot are 7490 feet above sea-level, and 20 miles in breadth. The last part of the ascent is so gentle that it is difficult to distinguish the exact point where the versant lies: a stony band crossing the road on the ridge of the table-land is pointed out as the place, and the position has been fixed at N. lat. 48° 19', and W. long. 108° 40'. The northern limit is the noble chain of Les Montagnes Rocheuses, which goes by the name of the Wind River; the southern is called Table Mountain, an insignificant mass of low hills.

A pass it is not: it has some of the features of Thermopylæ or the Gorge of Killiecrankie; of the European St. Bernard or Simplon; of the Alleghany Passes or of the Mexican Barrancas. It is not, as it sounds, a ghaut between lofty mountains, or, as the traveler may expect, a giant gateway, opening through Cyclopean walls of beetling rocks that rise in forbidding grandeur as he passes onward to the Western continent. And yet the word "Pass" has its significancy. In that New World where Nature has worked upon the largest scale, where every feature of scenery, river and lake, swamp and forest, prairie and mountain, dwarf their congeners in the old hemisphere, this majestic level-topped bluff, the highest steppe of the continent, upon whose iron surface there is space enough for the armies of the globe to march over, is the grandest and the most appropriate of avenues.

A water-shed is always exciting to the traveler. What shall I say of this, where, on the topmost point of American travel, you drink within a hundred yards of the waters of the Atlantic and the Pacific Oceans—that divides the "doorways of the west wind"-from the "portals of the sunrise?" On the other side of yon throne of storms, within sight, did not the Sierra interpose, lie separated by a trivial space the fountain-heads that give birth to the noblest rivers of the continent, the Columbia, the Colorado, and the Yellow Stone, which is to the Missouri what the Missouri is to the Mississippi, whence the waters trend to four opposite directions: the Wind River to the northeast; to the southeast the Sweetwater and the Platte; the various branches of the Snake River to the northeast; and to the southwest the Green River, that finds its way into the Californian Gulf. It is a suggestive