Archbald Pothole State Park

Archbald Pothole State Park | Ancient geology & quiet trails in Lackawanna County

Archbald Pothole State Park in Lackawanna County is home to one of Northeastern Pennsylvania’s most unique natural wonders. One of 18 state parks in NEPA, this small but captivating park features a massive geological formation created over 15,000 years ago during the Wisconsin Glacial Period. As glacial meltwater rushed through a vertical shaft, it carried rock debris that drilled deep into the bedrock, forming what is now the park’s namesake pothole—nearly 40 feet deep and 38 feet wide. First uncovered by coal miners in 1884, the site reveals a rare connection between NEPA’s natural history and industrial past.

Visitors can view the pothole safely from a fenced platform and learn about its formation through interpretive signage. The surrounding 150-acre park offers a peaceful retreat with woodland trails and wildlife viewing. A short loop trail winds through quiet forest and follows the remnants of an old mining tram route, offering glimpses of deer, wild turkey and other native wildlife along the way.

Archbald Pothole State Park is a true hidden gem among NEPA state parks, offering a perfect stop for hikers, geology lovers and history buffs alike.