
The Great Miami River carves a deep valley through this industrial and agricultural landscape, serving as the corridor for the Baltimore and Ohio, New York Central, and Pennsylvania railroads. This mid-century survey captures the expanding residential footprints of Franklin and Middletown as they grew along the riverbanks and rail lines. Notable for researchers is the massive Mound Laboratory (AEC) complex on the northern edge, a Cold War-era facility that stands in contrast to the ancient Indian Mound nearby.
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