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2019 Map of Thoroughfare Gap

Name: 2019 Topographic Map of Thoroughfare Gap
Creator: U.S. Geological Survey
Published: 2019
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2019

About this map

Thoroughfare Gap serves as the focal point of this landscape, where the Bull Run Mountains part to allow the passage of Broad Run and major transport routes. This 2019 survey captures the developed corridor of Gainesville and Haymarket as they expand toward the more rural terrain of the Fauquier Co and Prince William Co line. Significant industrial and social history is grounded in labels like Beverley Mill, situated at the gap’s narrowest point, and several small burial grounds including Beulah Cem and Saint Pauls Cem.

The southern portion of the map is dominated by the sprawling waters of Lake Manassas, while the north transitions into the steep elevations of High Point Mtn and Bisquit Mtn. This area reflects a long history of settlement and transit, from the colonial-era crossroads at Buckland to the modern residential growth surrounding Silver Lake. The detailed topography illustrates the intricate drainage patterns of Catharpin Cr and Cattail Run that have shaped the development of these Piedmont communities.