based on the map by <a href="https://en.wikipedia.org/wiki/User:SimonP" class="extiw" title="en:User:SimonP">User:SimonP</a> which was based on maps by me.
<a href="https://en.wikipedia.org/wiki/User:Earl_Andrew" class="extiw" title="wikipedia:User:Earl Andrew">Earl Andrew</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
<span class="int-own-work" lang="en">Own work</span>