'The LDWA is the only organisation to have collated the details of every known long distance path in the UK ... What constitutes a "long distance"? We list as "main routes" on this site walking routes that are 20 miles or more in length and are mainly off-road. Some shorter routes are also covered as main routes where they have some strategic significance, such as linking two other main routes, or if they are the only routes available in an area. We also list local networks promoted as a whole, providing long distance options when linked.'