Pen Cerrig-calch Pen Cerrig-calch Pen Cerrig-calch is a subsidiary summit of Waun Fach in the Black Mountains in the Brecon Beacons National Park in southern Powys, Wales. Its summit, at a height of 701m (2,300 ft), is marked by a trig point. The peak sits high above the River Usk valley as it narrows above the small town of Crickhowell.The views from here are wide-ranging and extend as far as the Beacons themselves to the west. A ridge runs off to the northwest and the shoulder of Pen Gloch-y-pibwr then turns north to the secondary top of Pen Allt-mawr whose peak at
Mount Leuser National Park 100 km wide, and mostly mountainous. About 40% of the park, mainly in the north-west, is steep, and over 1,500 m in elevation. This region is billed as the largest wilderness area in Southeast Asia, and offers wonderful trekking. Around 12% of the park, in the lower southern half, is below 600 m above sea level. Eleven peaks are over 2,700 m. Mount Leuser (3,119 m) is the third-highest peak on the Leuser Range. The highest peak is Mount Tanpa Nama (3,466 m), the second-highest peak in Sumatra after Mount Kerinci (3,805 m). Mount Leuser National Park is one of