Bull Run Mountains

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This article is about the Bull Run Mountains. For other uses, see Bull Run (disambiguation).

Bull Run Mountains
Range
Country	United States
State	Virginia

Part of	Blue Ridge Mountains

Highest point
- elevation	1,329 ft (405 m)

Coordinates: 38°53′35″N 77°40′50″W / 38.89306, -77.68056 The Bull Run Mountains are a mountain range of the Blue Ridge Mountains in northern Virginia in the United States. Together with Catoctin Mountain in Virginia and Maryland, the ranges make up the easternmost front of the Blue Ridge.

They are home to the Bull Run Mountains Conservancy Area, and to residents within Bull Run Mountain Estates.

Interstate 66 and the John Marshall Highway (Virginia Route 55) pass through the mountain at Thoroughfare Gap.

1 Geography
2 Geology
3 History
4 Notes
5 External links

[edit] Geography

The range extends approximately sixteen miles from Aldie in Loudoun County, through western Prince William County to New Baltimore in Fauquier County. In the north, from Aldie to the headwaters of Bull Run Creek, the range is entirely within Loudoun County and serves as the eastern border of the southern Loudoun Valley. South of Bull Run Creek, the watershed of the range forms the western border of Prince William with Fauquier and thus the eastern slopes are in the former county, while the western slopes are in the latter.

[edit] Geology

The Bull Run Mountains are a geological extension of the same formation that makes up the Catoctin Mountain. This formation consist mainly of Catoctin greenstone interspersed with white quartz and Precambrian metamorphosed basalt flows. The lower ridges on the eastern front also contain Jurassic basalt flows.^[1]