Yes it was. It was originally built for the Interurban line. I believe I may have tripped inside that particular tunnel or one like it when I was on a field trip in elementary school.
Blackhand Gorge Trail - Blackhand Tunnel
Posted March 14, 2022, by Robert Kiebel (kiebel [at] embarqmail [dot] com)
Yes it was. It was originally built for the Interurban line. I believe I may have tripped inside that particular tunnel or one like it when I was on a field trip in elementary school.