Long Eddy

These remote, vertical cliffs located in the Upper Delaware River mark a scenic boundary between Pennsylvania and New York.

Emerging from steep sandstone and shale slopes, Long Eddy’s wet cliffs nourish a variety of plants in this remote part of the Upper Delaware River, including one of the only known population of miner’s lettuce in the eastern United States. For this reason, The Nature Conservancy acquired 122 acres in 1990 to establish the Long Eddy River Edges Preserve and later secured conservation easements on an additional 566 acres—including 1.6 miles of river frontage—in order to further safeguard this unique habitat. Since then, the Conservancy has continued to work with local conservation-minded landowners and organizations such as the Delaware Highlands Conservancy to protect this unique stretch of river, with its forested slopes and spectacular waterfalls, for future generations.


688 acres


Wayne County, eight miles northeast of the village of Priceville, Pennsylvania.


Invasive species. Forest pests and pathogens.

What’s At Stake

Ferns and lichens thrive in this acidic, rock-strewn setting, which also harbors the rare miner’s lettuce—a plant usually witnessed further west in the Rocky Mountains. A remnant old-growth forest surrounds the cliffs with sugar maple, beech and yellow birch interspersed with black cherry. The lower half of the slope features Canadian hemlock and other conifers. Depending upon the time of year, wildflowers such as golden saxifrage and jack-in-the-pulpit can be found interspersed throughout this forested landscape that harbors abundant wildlife including osprey and bald eagle.


Acquired 122 acres of land and an additional 566 acres in conservation easements in 1990. Continue to monitor ecologically significant plants and animals.

Things To Do

The Long Eddy River Edges Preserve is not open to the public due to the fragile nature of the habitat.

Support This Work

Donate today to help us protect lands, waters and wildlife in Pennsylvania.