Twilight starts early at this time of year. Approaching Pen-Y-Fan from the south-west the sky was already brightening ahead of me. Maybe a third of a stop's worth of exposure- a tiny amount, but just visible nonetheless. If I was going to get a shot, it had to be now, before the onset of dawn consumed the starlight.
I'd wanted to try something on the hillside itself but time appeared to be running out. Before even reaching the car park, this bridge seemed to offer some compositional potential.
Surrounded by silence I took a gamble on positioning my tripod in the road, figuring I'd have time to return to my camera if I heard any traffic approaching.
I crossed the bridge on foot, preparing to light the scene from within, towards the camera. A glowstick still shone bright on my tripod from my earlier shoot, offering a reference point in the darkness- my torchlight had to fall to the left of that glowstick from my position.
The bridge's 'S bend' pattern offered a natural barrier to confine my light, creating the narrow beam across the tarmac and I pointed the light upwards briefly to backlight the trees.
The sky brightened significantly even in the few minutes it took me to get set up and perform my lighting. Having not moved the tripod throughout, I was able to blend my earliest dark sky frame from this location into the final image.