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1909 Map of Mount Airy

Name: 1909 Topographic Map of Mount Airy
Creator: U.S. Geological Survey
Published: 1945
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1945

About this map

The Baltimore and Ohio Railroad carves through the Maryland countryside on this early 20th-century survey, serving as a vital artery for transit between the rolling hills of Carroll and Howard counties. The settlement of Mount Airy serves as a central hub, while the landscape is defined by its water-powered industry, evidenced by numerous mills like Roxbury Mills, Hoods Mills, and Carrs Mill. These sites reflect a local economy still deeply tied to the drainage basins of the South Branch Patapsco River and the Patuxent River.

Evidence of the era's infrastructure is visible in the network of turnpikes, including the Washington and Philadelphia Turnpike and a noted Tollgate near Poplar Springs. The map documents a dense web of rural communities, from Unionville in the north to Damascus and Etchison in the south, providing a detailed record of crossroad settlements and family-named landmarks before modern highway expansion altered the regional character.