{table continued} ===================+============+============+====== | Feet above | Feet below | Feet Name. | Sugar Run | Sugar Run | above | Gap. | Gap. | Tide. -------------------+------------+------------+------ Summit of Chesa. & | | | Ohio Canal | 476 | | 2739 Albright's Summit | 141 | | 2424 Sand Patch do. | 129 | | 2412 Chambersburg and | | | Pittsburg Survey | 264 | | 2547 Cedar Swamp Gap | | | | 160 | | 2443 Bob's Creek do. | 213 | | 2496 Big Spring do. | 314 | | 2597 Laurel do. | 222 | | 2505 Adams do. | 175 | | 2458 Portage and Summit | 41 | | 2324 Sugar Run Gap | 0 | | 2283 Burgoon's do. | 80 | | 2363 Kittanning do. | 75 | | 2358 Dry do. | 67 | | 2350 Hamer's do. | 177 | | 2460 Schultz do. | | 17 | 2266 Cock Run do. | | 55 | 2228 Maple do. | | 61 | 2222 Bell's do. | | 12 | 2271 Three Springs Gap | | 53 | 2230 Emigh's do. | | 240 | 2043 -------------------+------------+------------+----- It will be perceived that the lowest point in the mountain, except at Emigh's, is Maple Gap, from which issues Bell's Run (a branch of the Little Juniata), on the east, and Sandy Run of Clearfield, on the west. This point is 61 feet below Sugar Run Gap and could be further reduced 150 feet by a tunnel 700 yards in length. If the ground had been favorable beyond the summit, this route would probably have offered the greatest advantages to cross the mountain, but it opens westwardly upon the deep valley of Clearfield, a descent into which would involve the necessity of a resort to as steep a gradient on the west side of the mountain as that required on the east; and the elevation thus lost would have to be regained by following up the valley to Laurel Swamp or Munster summits, in the ridge that separates Clearfield from the Conemaugh, which is here the true backbone of the country.