MAPSTA.NET is a growing collection of useful maps or links to maps from various countries, especially hard-to-find maps:
Public Transport Maps
Public transport maps from non-English-speaking countries often don’t appear in your search engine results because they are indexed in the local language. Mapsta.net provides quick links to some of these maps – as well as a few UK maps that we’ve found useful or especially good. See the menu of countries at the top of this page, and click a country from the drop-down menu.
Ordnance Survey maps (Britain)
Some maps of footpaths, cycle paths, bridleways, and other rights of way in areas of Britain suchhttp://s as The Cotswolds, the Dartmoor National Park in Devon, Gower in Wales, and England’s South Downs and coast, are listed on the UK – OS maps page. View these 1:50000 scale ordnance survey Landranger maps free in full screen mode online, and/or buy the folding paper versions through the links provided.