Allegheny Islands Wilderness, Wilderness area in Allegheny National Forest, Pennsylvania.
Seven islands along the Allegheny River form this 368-acre wilderness, featuring river bottom forests of sycamore, hickory, and silver maple trees.
The United States Congress designated this collection of islands as a protected wilderness area in 1984, making it one of the smallest in the country.
Thompson Island contains traces of Revolutionary War events, where American soldiers under Colonel Daniel Brodhead encountered British and Iroquois forces.
Access to the islands requires watercraft navigation, as no bridges or designated trails connect these protected lands to the mainland.
Pennsylvania's largest sycamore tree stands 148 feet tall within this wilderness, marking a natural monument among the river bottom forest.
Location: Pennsylvania
GPS coordinates: 41.75130,-79.31550
Latest update: March 16, 2025 16:57
Kinzua Dam
27.7 km
Drake Well
32.5 km
Allegheny Reservoir
31.9 km
Drake Well Museum
32.5 km
Allegheny National Recreation Area
25.8 km
Chapman State Park
11.4 km
Hearts Content Scenic Area
8.3 km
Tanbark Trail
11.2 km
Hickory Creek Wilderness
8.8 km
Chapman Lake
12 km
Warren County Courthouse
17.7 km
Busti Mill
31.6 km
Warren Historic District
17.7 km
Dr. John Lord House
32.6 km
Struthers Library Building
17.5 km
Irvine United Presbyterian Church
10.3 km
Guy C. Irvine House
23.2 km
A.J. Hazeltine House
16.8 km
West Hickory Bridge
21.6 km
Allegheny Baptist Church
27.9 km
Jersey Bridge
32.2 km
Tidioute Bridge
11.3 km
Connely-Holeman House
29.2 km
John P. Jefferson House
17.5 km
Titusville Historic District
32.7 km
Woman's Club of Warren
17.7 km
Wetmore House
17.6 km
Rimrock Trail
32.4 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes