590nm IR Infrared IR with Channel Swapping Schuylkill County No. 38. Along the Bartram Trail September 15, 2019September 15, 2019 Jay M. Ressler 0 Comments 590nm IR, Bartram Trail, Infrared, Schuylkill River Bicycle Trail System Along the Bartram Trail in Schuylkill County, PA. Read more