Linear walk approximately 10 miles from Langsett Reservoir to Derwent Reservoir via Margery Hill and Howden Edge. Meet 9.00am car park just before Fairholmes Visitor Centre RHS. GR 174889 Dark Peak map. Bring lunch and drinks. No escape route from this walk so be prepared in case of bad weather. I do need to know numbers so transport can be arranged over to Langsett. If interested please get in touch.