If you click on this link https://youtu.be/9zxXgJN-sSs you'll have an extract from Derek Brockway's Weatherman Walking series on BBC Wales in which Emma Harrison, who runs the Star Inn in Bwlch, tells Derek about the links between the Black Mountains and how it's believed it inspired Tolkien's vision of the landscape in his Lord of the Rings trilogy. Tolkien stayed in the village of Talybont-on-Usk in the 1940s, while working on parts of The Lord of The Rings andwhilst in Talybont-on-Usk he walked the local hills and would have seen the conical topped Sugar Loaf which is very similar to his 'Lonely Mountain'. He named the hobbit settlement of Crickhollow after Crickhowell, nine miles from Talybont. Also in The Lord of the Rings, Buckland was a colony of hobbits between the Old Forest and the Brandywine River. Tolkien is thought to have based this part of Middle-earth on the Buckland Estate, whose ancient, protected woodlands stand beside the River Usk. It's also believed Merthyr was the inspiration for Mordor.