In the winter of 1861-1862, Centreville was the linchpin of extensive fortifications erected by Confederate troops to protect their winter quarters and block anticipated Union advances. The earthworks stretched nearly eight miles south and west of town. More than 40,000 troops occupied the area that winter.

The map shows the major features of the works around Centreville in relation to the roads as they existed at that time.

Courtesy hmdb.org

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