Before determining the point to pass the mountain, a full examination of its crest was made, from Cedar Swamp summit on the south, to Three Springs Gap at the head of Moshannon creek on the north, embracing a distance of 44 miles. The following table will show the elevation, above tide, of each summit within that distance; also, that at Emigh's Gap, on the northern route, and at the head waters of Castleman's river on the southern: _Tabular Statement of Depressions of Allegheny Mountain._ ===================+=============================+================ | | Name. | Waters Divided. | Authority. | | -------------------+-----------------------------+---------------- Summit of Chesa. & | | Ohio Canal | Castleman's and Potomac | U. S. Engineers Albright's Summit | do. do. | Sand Patch do. | do. do. | J. Knight Chambersburg and | | Pittsburg Survey | | H. Hage Cedar Swamp Gap | Raystown Branch of Juniata | | and S. Fork of Conemaugh | S. H. Long Bob's Creek do. | Raystown B. and Conemaugh | do. Big Spring do. | Juniata and Conemaugh | do. Laurel do. | do. do. | do. Adams do. | do. do. | do. Portage and Summit | Juniata and Clearfield | C. L. Schlatter Sugar Run Gap | | S. H. Long Burgoon's do. | do. do. | C. L. Schlatter Kittanning do. | do. do. | do. Dry do. | do. do. | do. Hamer's do. |Little Juniata and Clearfield| do. Schultz do. | do. do. | E. Miller Cock Run do. | do. do. | do. Maple do. | do. do. | do. Bell's do. | do. do. | do. Three Springs Gap | Little Juniata and Moshannon| do. Emigh's do. | do. do. | C. L. Schlatter -------------------+-----------------------------+----------------