Continued from Horseshoe Curve Intermission. After the crane passed, the tracks were quiet again for a long time. It was hot that day, and we grumbled a bit .brbrBack in the beginning of March, SCT traveled about two hours east of the Steel City and followed the Pittsburgh Line all the way to Altoona where the Altoona .brbrThe first train I filmed at Horseshoe Curve on August 4, 1994. The early morning silence is shattered as a pair of SD40-2 helpers leads a C30-7A and an NS .