The 2016 Challenge, day 5: Killin to Fortingall (2)

After a bit, the ground leveled out for a bit, and a pleasant little track led to the bottom of the second part of the ascent; and here there was a surprise. A railway track ran beside the pipeline for the rest of the way up! Doubtless this had once been a gravity-worked incline (there's no way any locomotive could have worked a gradient like that without a rack and pinion; and there was no rack up the centre of these tracks). From my perspective, it made the ascent much easier, as I could "sleeper hop" all the way up.