In this edition of Countryfile, Ellie Harrison explores some of Britain's most spectacular hills and mountains. She exclusively reveals that one of Britain's most iconic mountains is up for sale, getting a tour of the estate and meeting the people who live and work on the land. In addition, Ellie looks back at the best bits of Countryfile to have featured hill-and-mountain-themed stories - everything from the challenges of farming on a mountain to the walkers and climbers seeking out adventure and dramatic scenery.