Collier Mountain is a mountain in the

Ridge and Valley 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 ...

region of the

Appalachian Mountains The Appalachian Mountains, often called the Appalachians, (french: Appalaches), are a system of mountains in eastern to northeastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. They ...

, located in Allegany County,

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...

. The ridge is approximately southeast of

Cumberland Cumberland ( ) is a historic county in the far North West England. It covers part of the Lake District as well as the north Pennines and Solway Firth coast. Cumberland had an administrative function from the 12th century until 1974. From 19 ...

. It runs northeast from the

North Branch Potomac River The North Branch Potomac River flows from Fairfax Stone in West Virginia to its confluence with the South Branch Potomac River near Green Spring, West Virginia, where it turns into the Potomac River proper. Course From the Fairfax Stone, the ...

near its confluence with Patterson Creek to Murley Branch south of

Breakneck Hill Breakneck Hill is a mountain in the Ridge and Valley region of the Appalachian Mountains, located in Allegany County, Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, Wes ...

Coordinates

(N. 39°37' W. 78°41')

References

* United States Geological Survey * Maryland Geological survey {{coord, 39, 37, 10, N, 78, 40, 56, W, display=title Landforms of Allegany County, Maryland Mountains of Maryland