Pennsylvania – Revegetation Activity – Lehigh Gap to Little Gap

Hiking Safety



As part of the Palmerton Zinc Pile Superfund Site remedial action (the revegetation of Blue Mountain), airplanes will be applying native seed and soil amendments onto areas of Blue Mountain south of Palmerton between March 20 and April 7, 2023. Application will occur on sections of the Appalachian Trail (A.T.) between Lehigh Gap and Little Gap (NOBO miles 1,260.6 – 1,266.0).

The remediation company will have safety officials on site and signs posted along the Trail to notify recreational users during application. The safety officials will be in communication with the pilots and may ask hikers to stop briefly if a plane is about to make a pass over the A.T. Hikers should follow all directions from safety officials and signs.

Application materials will include 12 species of native grasses, 25 species of native wildflowers, pine, and sumac seed, as well as limestone and fertilizer. Previous aerial seeding occurred in 2006, 2008, 2011, and 2012.

For more information about the A.T. and the Palmerton Zinc Pile Superfund Site, visit To read about recent Trail work in this area, visit