1944 Map of Seneca

About this map

The Potomac River corridor serves as the central artery for this 1944 War Department survey, marking the border between Maryland and Virginia. Along the northern bank, the Chesapeake and Ohio Canal follows the river's curve past Blockhouse Point, indicating the historical importance of this transport waterway. In the uplands of Montgomery County, the rural crossroads of Darnestown and Quince Orchard are connected by State Hwy. No. 28, while the hamlet of Seneca sits at the confluence of the river and Seneca Creek. This survey captures the region's mid-century landscape of family-named settlements and geographic markers like Watkins Island and Sycamore Island. On the Virginia side, the topography is defined by drainage patterns including Sugarland Run and Nichols Branch, leading toward the community of Dranesville and the railroad-adjacent Herndon Junction.