Nicholas Mountain, or Irons Mountain, is located in

Allegany County, Maryland Allegany County is located in the northwestern part of the U.S. state of Maryland. As of the 2020 census, the population was 68,106. Its county seat is Cumberland. The name ''Allegany'' may come from a local Lenape word, ''welhik hane'' or '' ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

and extends northeasterly 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 ...

for until southeast of

Cumberland, Maryland Cumberland is a U.S. city in and the county seat of 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 s ...

. It reaches an elevation of .

References

* United States Geological Survey * Maryland Geological survey {{Mountains of Maryland Landforms of Allegany County, Maryland Mountains of Maryland