This is a "satellite" plugin for the Basic Meeting List Toolbox (BMLT).
The Basic Meeting List Toolbox (BMLT) is a powerful client/server system for locating NA meetings. The "root server" is a standalone Web site, 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 or not older browsers are supported.