
Delaware River commerce and industrial milling define this landscape at the close of the 19th century. Along the waterfront, Marcus Hook and Eddystone serve as vital transit hubs where the Phila. Wilmington & Baltimore R. R. and the Baltimore & Ohio R. R. meet the heavy river traffic. Moving inland, the steep gradients of Chester Creek and Ridley Creek support a series of industrial sites, including Lenni Mills, Glen Mills, and Sycamore Mills.
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