1908 Map of Seneca

About this map

The Potomac River corridor serves as the primary axis of this 1908 survey, where the Chesapeake and Ohio Canal hugs the Maryland shoreline across from Loudoun County, Virginia. The landscape is defined by its early 20th-century transportation network, including the Metropolitan Branch of the Baltimore and Ohio and the Southern Railway Bluemont Branch. Agricultural settlements like Poolesville, Darnestown, and Boyds appear as established rural hubs, while the distinction between Germantown and Old Germantown reflects the shifting gravity of local commerce toward the railroad. Along the river, named islands such as Selden Island and Lowes Island sit near strategic crossings like Nolands Ferry. The map also documents specific land-use points like Blockhouse Pt and localized branches such as Great Seneca Creek and Sugarland Run, which dictated the early placement of mills and farmsteads in the Piedmont.