OsGetRegionMapTexture

osGetRegionMapTexture(string regionName)

//Example Usage:
default {
    state_entry() {
        key map = osGetRegionMapTexture(llGetRegionName());
        llSetTexture(map, 0);
    }
}

This function retrieves the UUID of the texture used to represent the named region on the world map, and returns it. Using this function, you can place the map texture directly onto a prim.