NS Pittsburgh Line; Tyrone, Tipton, Nighttime at Altoona - October Trip

After chasing the Nittany & Bald Eagle on October 12th, we went back to the Pittsburgh Line.
We visit Tyrone, Tipton, and the Altoona Rail Walk for some nighttime action. Each spot provided a nice amount of trains with a nice variety of motive power, including six locomotives on 21M, an SD70ACU leader on 23M, and a trio of GP38-2's on C42. At night, we see an I94 for Elizabeth, NJ, with a UP ES44AC trailing second, as well as the Norfolk & Western heritage unit trailing second on 26E, bound for Morrisville, PA.