The remains of Peveril Castle sit atop a ridge above Cave Dale in Castleton. Mid-morning sunshine illuminates the keep with a golden glow, causing it to stand out against the frosted slopes of Mam Tor hill beyond. There has been a fortification at this site since 1080 AD, built by William Peveril who has appointed bailiff of the Royal Manor's of the Peak. Originally constructed from wood, it was replaced with stone at a later date.