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Allegheny Islands State Park

Accessible only by boat, the 50-acre Allegheny Islands State Park consists of two alluvial islands and seven shoals in the Allegheny River. The park is heavily covered in vegetation and remains undeveloped. Some of the few islands left in a natural state, the islands are homes to many animals and plants and frequently flood.

The 14-acre upper island (eastern) is opposite the mouth of Black Run and east of C.W. Bill Young Lock and Dam #3.

The 34-acre lower island (western) is west of the lock between the mouths of Falling Springs Run and Black Run.

There are no developed trails, however, several footpaths exist.

Seasons and Hours

The park is open every day of the year, sunrise to sunset.

This map shows the park in Pennsylvania. 


Allegheny Islands State Park is in northeastern Allegheny County. The park is within the Allegheny River and is accessible by boat only.

GPS DD:  Lat. 40.53685  Long. -79.8219

This circular map shows the roads near the park. 

Access for People with Disabilities

This activity or structure is ADA accessible. The park office at Point State Park is ADA accessible.

If you need an accommodation to participate in park activities due to a disability, please contact the park you plan to visit.

In an Emergency

Call 911.

Nearest Hospital

UPMC Saint Margaret Hospital
815 Freeport Road
Pittsburgh, PA 15215

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Allegheny Islands State Park