
The confluence of industrial corridors and suburban growth characterizes this eastern Allegheny County landscape. The Monongahela River and Allegheny River frame a dense network of residential communities and transit arteries, including the Allegheny River Blvd and the Tri-Boro Expy. Small islands like Sycamore Island and Ninemile Island break the river current, while the interior is defined by a series of steep valleys carved by Turtle Creek and Chalfant Run.
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