SPOT THE PROBLEM. The spotted lanternfly is an invasive insect that poses a serious threat to Pennsylvania’s resources, businesses, and economy. To date, our park does NOT have these pests. Help us stay lanternfly free and stop the spread. Visit the
Penn State Extension’s Spotted Lanternfly website to learn how to identify it, report it, and inspect your vehicle or gear when travelling to and from the quarantine zone.
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.
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
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
UPMC Saint Margaret Hospital
815 Freeport Road
Pittsburgh, PA 15215