and there was left, after it had passed, a wide bed, like a great Alpine glacial _moraine_, filled with ponderous masses of sand and stones and wreckage of every description, the resistless torrent being afterwards reduced to a little stream of running water. It required many months to recover from this appalling destruction; but the people went to work with a will and rebuilt the town, the steel works and the railway, which for a dozen miles down the valley had been completely obliterated. This terrible disaster excited universal sympathy, and a relief fund amounting to nearly $3,000,000 was contributed from all parts of the world. LIGONIER AND HANNASTOWN. The whole mountain district west of Johnstown is filled with coal mines, coke ovens and iron furnaces, this being the "Pittsburg Coal District." The Conemaugh breaks through the next western ridge, the Laurel Mountain, and the broadening river winds along its deep valley between high wooded hills. It is a veritable "Black Country," and ten miles beyond, the river passes the finest mountain gorge on the western slope of the Alleghenies, the deep and winding canyon of the Packsaddle Narrows, by which the Conemaugh breaks out of the Chestnut Ridge, the western border of the Allegheny ranges. For two hundred miles the railroad has gone through or over range after range, and this grand pass, encompassed by mountains rising twelve hundred feet above the bottom of the gorge, is the impressive exit at the final portal. The main railroad then leaves the Conemaugh, and goes off southwestward along the slope of Chestnut Ridge towards Greensburg and Pittsburg. The river unites with the Loyalhanna Creek below, and then flows as the Kiskiminetas down to the Allegheny. The name of Loyalhanna means the "middle stream," while the tradition is that an impatient Indian warrior, anxious to move forward, shouted in the night to his comrades encamped on the other river--"Giesh-gumanito"-- "let us make daylight"--and from this was derived its name of Kiskiminetas. A branch railroad from here goes to Blairsville, named in memory of the solitary pioneer of Blair's Gap, and another northward leads to the town of Indiana. The great Chestnut Ridge which the main railway runs along, gradually descending the slope, is the last mountain the westbound traveller sees until he reaches the Rockies. For seventy miles to the southwestward the Chestnut Ridge and Laurel Mountain extend in parallels, their crest lines being almost exactly ten miles apart, and enclosing the Ligonier Valley, out of which flows northward the Loyalhanna Creek, breaking through the Chestnut Ridge. Near this pass in 1757 was built Fort Ligonier, another of the frontier outposts which resisted the incursions of the French and Indians, who then held all the country to the westward. In the Chestnut Ridge at Hillside is the "Great Bear Cave," an extensive labyrinth of passages and spacious chambers stretching more than a