The Basic Meeting List Toolbox (BMLT) is a powerful client/server system for locating NA meetings.
The “root server” is a standalone Website, but “satellite servers” are set up to point to the “root.” This is a “satellite,” set up as a WordPress plugin.
It is very easy to install and use. It has an administration panel that lets you choose a map center, designate the root, set up the map zoom, and whether older browsers are supported.
You need to go to this Web page to get very detailed instructions on installing and configuring the plugin.