Gardiner, Mont. 5,400 feet. Mammoth Hot Springs hotel 6,215 " Glen Creek Bridge above Golden Gate 7,245 " Indian Creek Bridge 7,275 " Beaver Lake 7,360 " Norris Road Junction 7,470 " Gibbon Meadows 7,315 " Gibbon and Firehole Rivers, junction of 6,780 " Lower Geyser Basin (mouth of Nez Percé Creek) 7,125 " Upper Geyser Basin (near Castle Geyser) 7,300 " Mouth of Spring Creek 7,600 " Isa Lake, Continental Divide 8,300 " Yellowstone Lake 7,741 " Road at Mud Volcano 7,705 " Cañon Hotel 7,850 " Junction Valley near Yancey's 6,150 " Divide between the Black-tail and Gardiner 6,550 " [AT] From profile of road system. For additional elevations, see list of names in Appendix A. SCENERY. The mountain scenery of the Park is not so imposing as that of Colorado and some other parts of the Rocky Mountain region; but it is more varied and beautiful. The eye is not wearied with the constant sight of vast and bare mountain cliffs, but finds relief in attractive lakes, streams, glades, parks, forests, and every combination of effects that helps to produce a beautiful landscape. CHAPTER II. Geology of the Park. Nature seems, from the first, to have designed this region for a mountain park. In geological chronology it was near the close of the Cretaceous Period, that the lifting of the great mountain systems of the West into their present positions was practically finished. In the formation of these mountains, the general outline of the Yellowstone Park was already marked out, probably in much more striking features than at present. A vast rim of mountains, visible now in the Absaroka, Snowy, Gallatin, Teton, and Snake River Ranges, hemmed in the extensive area which has since become so famous. Subsequent events have greatly modified its original form, but the grand outlines at first determined are still distinctly visible.