Allegheny Mountain is a stratigraphic ridge that extends northeast to southwest from south of Blue Knob (Pennsylvania)

Blue Knob (Pennsylvania)

Blue Knob is a Pennsylvania summit with a broad dome that is the most northern of the 3,000 footers in the range of Allegheny Mountains. The mountain covers of Blue Knob State Park and contains approximately 18 miles  of hiking trails and numerous overlooks. A ski area is located on the...

to a saddle point

Saddle point

In mathematics, a saddle point is a point in the domain of a function that is a stationary point but not a local extremum. The name derives from the fact that in two dimensions the surface resembles a saddle that curves up in one direction, and curves down in a different direction...

 at the Savage Mountain

Savage Mountain

The two Big Savage Mountain summits are part of Savage Mountain.The two Big Savage Mountain summits are part of Savage Mountain....

 anticline. It merges with Negro Mountain

Negro Mountain

Negro Mountain is a long ridge of the Allegheny Mountains extending from Deep Creek Lake in Maryland, north to the Casselman River in Pennsylvania, USA. The summit, Mount Davis, is the highest point in Pennsylvania...

 just north of the Cambria County

Cambria County, Pennsylvania

Cambria County is a county located in the U.S. state of Pennsylvania. It comprises the Johnstown, Pennsylvania, Metropolitan Statistical Area. As of 2010, the population was 143,679....

 line where the Berlin

Berlin, Pennsylvania

Berlin, a borough located approximately 75 miles southeast of Pittsburgh in Somerset County, Pennsylvania, United States, was laid out in 1784 and incorporated on February 7, 1833. The population was 2,192 at the 2000 census...

-Salisbury

Salisbury, Pennsylvania

Salisbury is a borough in Somerset County, Pennsylvania, United States. The population was 878 at the 2000 census. It is part of the Johnstown, Pennsylvania Metropolitan Statistical Area.-History:...

 basin expires http://books.google.com/books?id=HfYQAAAAIAAJ&pg=PA469.

Eastern Continental Divide

Eastern Continental Divide

The Eastern Continental Divide, in conjunction with other continental divides of North America, demarcates two watersheds of the Atlantic Ocean: the Gulf of Mexico watershed and the Atlantic Seaboard watershed. Prior to 1760, the divide represented the boundary between British and French colonial...

 (ECD): The ECD enters Allegheny Mountain south of Fraziers Pass and follows the Allegheny Backbone http://www.archive.org/stream/railroadsunited00atkigoog/railroadsunited00atkigoog_djvu.txt southwest where it leaves the escarpment

Allegheny Front

The Allegheny Front is the major southeast- or east-facing escarpment in the Allegheny Mountains in southern Pennsylvania, western Maryland, and eastern West Virginia, USA. The Allegheny Front delineates the Ridge-and-Valley Appalachians to its east from the Appalachian Plateau to its west...

 toward the saddle point

Saddle point

In mathematics, a saddle point is a point in the domain of a function that is a stationary point but not a local extremum. The name derives from the fact that in two dimensions the surface resembles a saddle that curves up in one direction, and curves down in a different direction...

 to the southeast between headwaters of Flaugherty and Wills Creek

Wills Creek (North Branch Potomac River)

Wills Creek is a tributary of the North Branch Potomac River in Pennsylvania and Maryland in the United States.Wills Creek drops off the Allegheny Mountains of southeastern Somerset County, Pennsylvania, and enters the North Branch Potomac River at Cumberland, Maryland.-History:thumb|220px|Fort...

s, at which the ECD enters the Savage Mountain

Savage Mountain

The two Big Savage Mountain summits are part of Savage Mountain.The two Big Savage Mountain summits are part of Savage Mountain....

 anticline.http://books.google.com/books?id=HfYQAAAAIAAJ&pg=9

valign=top style="background:silver" | Ridge and valley elevations

Ridge-and-valley Appalachians

The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian division and are also a belt within the Appalachian Mountains extending from southeastern New York through northwestern New...

 (north-to-south)
(Points on the Eastern Continental Divide

Eastern Continental Divide

The Eastern Continental Divide, in conjunction with other continental divides of North America, demarcates two watersheds of the Atlantic Ocean: the Gulf of Mexico watershed and the Atlantic Seaboard watershed. Prior to 1760, the divide represented the boundary between British and French colonial...

 are shown in italics.)

wikiarticle	west valley	summit or other point	east valley
Northern terminus
Fraziers Pass	2180 feet (664.5 m) (Stonycreek River)	3010.3 feet (917.5 m)40°3′29"N 78°45′29"W (Grandview Summit)	1100 feet (335.3 m) (Juniata River Juniata River The Juniata River is a tributary of the Susquehanna River, approximately long, in central Pennsylvania in the United States. The river is considered scenic along much of its route, having a broad and shallow course passing through several mountain ridges and steeply-lined water gaps... )
US Route 30	2580 feet (786.4 m) (Breastwork Run Raystown Branch Juniata River The Raystown Branch Juniata River is the largest and longest tributary of the Juniata River in south-central Pennsylvania in the United States.... )
summit		2801 feet (853.7 m)39°58′38"N 78°50′16"W (summit)
summit		2795 feet (851.9 m)39°57′48"N 78°50′50"W (summit)
Pennsylvania Turnpike Pennsylvania Turnpike The Pennsylvania Turnpike is a toll highway system operated by the Pennsylvania Turnpike Commission in the Commonwealth of Pennsylvania, United States. The three sections of the turnpike system total . The main section extends from Ohio to New Jersey and is long...	2220 feet (676.7 m) (Stonycreek River)	2690 feet (819.9 m)39°57′41"N 78°51′24"W (summit) Allegheny Mountain Tunnel Allegheny Mountain Tunnel The Allegheny Mountain Tunnel is a vehicular tunnel carrying the Pennsylvania Turnpike through the Allegheny Mountains. At this point, the Turnpike carries Interstates 70 and 76. The original Allegheny Mountain Tunnel was built in the late 19th century for the South Pennsylvania Railroad, which was...
Chambersburg and Pittsburgh Survey		2580 feet (786.4 m)39°57′13"N 78°50′32"W (Deeter Gap)
Raystown Branch Juniata River Raystown Branch Juniata River The Raystown Branch Juniata River is the largest and longest tributary of the Juniata River in south-central Pennsylvania in the United States....	Buffalo Creek Buffalo Creek (Juniata River) Buffalo Creek is a tributary of the Juniata River in Perry County, Pennsylvania in the United States.Buffalo Creek joins the Juniata River at the borough of Newport.-References:...	2889.6 feet (880.8 m)39°54′48"N 78°53′16"W (triple watershed)	1260 feet (384 m) (Little Wills Creek)
Savage Mountain PA		2667 feet (812.9 m)39°53′11"N 78°44′10"W
Allegheny Backbone Allegheny Front The Allegheny Front is the major southeast- or east-facing escarpment in the Allegheny Mountains in southern Pennsylvania, western Maryland, and eastern West Virginia, USA. The Allegheny Front delineates the Ridge-and-Valley Appalachians to its east from the Appalachian Plateau to its west...		2830 feet (862.6 m)39°49′25"N 78°58′10"W (summit) southmost ECD summit on Allegheny Mountain (Pennsylvania) escarpment
Baltimore & Ohio Railroad	1940 feet (591.3 m) Casselman River Casselman River The Casselman River is a tributary of the Youghiogheny River in western Maryland and Pennsylvania in the United States.The Casselman River rises atop the plateau of western Maryland and then follows a great arc across the Laurel Highlands of Somerset County, Pennsylvania to the appropriately named...  @ Flaugherty Creek Meyersdale, Pennsylvania Meyersdale is a borough in Somerset County, Pennsylvania, on the Casselman River, southeast of Pittsburgh. In the past, its chief industry was the mining of coal. Meyersdale was first settled as early as 1776, but the growth of the town dates from the advent of the first railroad in 1871. Coal...	2430 feet (740.7 m)39°48′30"N 78°57′27"W (saddle point Saddle point In mathematics, a saddle point is a point in the domain of a function that is a stationary point but not a local extremum. The name derives from the fact that in two dimensions the surface resembles a saddle that curves up in one direction, and curves down in a different direction... )	900 feet (274.3 m) Wills Creek Wills Creek (North Branch Potomac River) Wills Creek is a tributary of the North Branch Potomac River in Pennsylvania and Maryland in the United States.Wills Creek drops off the Allegheny Mountains of southeastern Somerset County, Pennsylvania, and enters the North Branch Potomac River at Cumberland, Maryland.-History:thumb|220px|Fort...  @ Little Wills Creek