
The Allegheny River carves a significant path through this portion of McKean County, joined by major tributaries like Allegheny Portage Creek and Twomile Creek. The settlement of Port Allegany serves as the primary hub, where the river valley widens and supports a grid of residential and industrial streets including Volney St and Glass Pl. The landscape is defined by deep hollows and high points such as Prospect Hill and Champlain Hill, illustrating the complex drainage patterns that lead into the river valley.
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