The map shown is a work in progress; no doubt there are many close misses, and lots of just missing. It was produced as a private project by Phillip Benson. However, if you find a mistake, or want to add something, just send an email to email@example.com with full details and the latitude and longitude of the correction or new marker. Advice on how do this can be found on the help page.
Neither CWAA nor Phillip Benson can be held liable for how you use the map, or any errors on it.