The Pennine Bridleway is 130 miles Starting in Derbyshire running all the way to West Yorkshire. OS Explorer 25K National Park Pack is your best price choice when buying maps covering this whole National Park. Clear OS Explorer 25K maps gives you best background for planning your trips. You also get standard benefit of 25K OS mapping: High-resolution raster backdrop map data provides a static map backdrop on which you can overlay information. Shows rights of way information for England and Wales, selected cycle routes and National Trail and Recreational Path routes. Provides detail, including hill contours, height information and field boundaries.