Pen y Fan Facts and figures Location: Brecon Beacons National Park Height: 886m / 2907ft Walking distance: 9 km Car park postcode: LD3 8NL (Storey Arms) Right click and 'Save As' here, to download Pen y Fan route for GPS. Paper OS Maps OS Explorer OL12 Brecon Beacons National Park West & Central OS Landranger 160 Brecon Beacons Buy the OS OL12 Buy the OS 160