Learn and talk about Allegheny Mountain (Pennsylvania), Allegheny Mountains, Geography of Bedford County, Pennsylvania, Geography of Cambria County, Pennsylvania, Geography of Somerset County, Pennsylvania

For the Little Allegheny Mountain summit (2,165 feet) in Maryland, see Dans Mountain.

For other mountains with a similar name, see Allegheny Mountain (disambiguation).

Allegheny Mountain
Allegheny Ridge
Allegheny Mountain Tunnel on the Pennsylvania Turnpike
Highest point
Peak	Grandview Summit (Eastern Continental Divide)
Elevation	3,010.3 ft (917.5 m)
Coordinates	40°3′29″N 78°45′29″W / 40.05806°N 78.75806°W / 40.05806; -78.75806
Geography
Allegheny Mountain is a northern portion of the range of Allegheny Mountains
Country	United States
State	Pennsylvania
Counties	Bedford, Cambria and Somerset
Parent range	Ridge-and-Valley Appalachians of the Allegheny Mountains
Geology
Orogeny	Alleghenian orogeny
Type of rock	Carboniferous^[1]

Eastern Continental Divide points of Allegheny Mountain (Pennsylvania)

Allegheny Mountain is a stratigraphic ridge that extends northeast to southwest from south of Blue Knob (Pennsylvania)^[specify] to a saddle point at the Savage Mountain anticline. It merges with Negro Mountain just north of the Cambria County line where the Berlin-Salisbury basin expires [1].

Eastern Continental Divide (ECD): The ECD enters Allegheny Mountain south of Fraziers Pass and follows the Allegheny Backbone [2] southwest where it leaves the escarpment toward the saddle point to the southeast between headwaters of Flaugherty and Wills Creeks, at which the ECD enters the Savage Mountain anticline.[3]

Ridge and valley elevations (north-to-south)
(Points on the Eastern Continental Divide are shown in *italics*.)
wikiarticle	west valley	summit or other point	east valley
Northern terminus		^[specify]
Fraziers Pass^{[clarification needed]}	2,180 feet (660 m) (Stonycreek River)	3,010.3 feet (917.5 m)40°3′29″N 78°45′29″W / 40.05806°N 78.75806°W / 40.05806; -78.75806 (Grandview Summit)	1,100 feet (340 m) (Juniata River)
US Route 30	2,580 feet (790 m) (Breastwork Run)
summit		2,801 feet (854 m)^{[verification needed]}39°58′38″N 78°50′16″W / 39.97722°N 78.83778°W / 39.97722; -78.83778 (summit)
summit		2,795 feet (852 m)^{[verification needed]}39°57′48″N 78°50′50″W / 39.96333°N 78.84722°W / 39.96333; -78.84722 (summit)
Pennsylvania Turnpike	2,220 feet (680 m) (Stonycreek River)	2,690 feet (820 m)39°57′41″N 78°51′24″W / 39.96139°N 78.85667°W / 39.96139; -78.85667 (summit) Allegheny Mountain Tunnel
Chambersburg and Pittsburgh Survey^[2]		2,580 feet (790 m)39°57′13″N 78°50′32″W / 39.95361°N 78.84222°W / 39.95361; -78.84222 (Deeter Gap)
Raystown Branch Juniata River	Buffalo Creek	2,889.6 feet (880.8 m)39°54′48″N 78°53′16″W / 39.91333°N 78.88778°W / 39.91333; -78.88778 (triple watershed)	1,260 feet (380 m) (Little Wills Creek)
Savage Mountain PA^[3]		2,667 feet (813 m)39°53′11″N 78°44′10″W / 39.88639°N 78.73611°W / 39.88639; -78.73611^[4]
Allegheny Backbone		2,830 feet (860 m)39°49′25″N 78°58′10″W / 39.82361°N 78.96944°W / 39.82361; -78.96944 (summit) southmost ECD summit on Allegheny Mountain (Pennsylvania) escarpment
Baltimore & Ohio Railroad	1,940 feet (590 m) Casselman River @ Flaugherty Creek	2,430 feet (740 m)39°48′30″N 78°57′27″W / 39.80833°N 78.95750°W / 39.80833; -78.95750^[3] (saddle point)	900 feet (270 m) Wills Creek @ Little Wills Creek