We have temporary lowered the chunk data being sent to the client causing you to have a lower view distance of visible chunks.
This should help prevent or at least slow down the whole hitting void while riding the subway system. Though this will cause some other issues like Moria will look kind of ugly as you would not be able to see all of it.
This is only a temporary solution and were trying to work out a fix ASAP with the developers.
Merry Christmas. Sorry it took so long but here you guys and girls go. Yes it's not a flat map but it has more details this way. Just sucks for people who want to do special calculations but hell the map is really number one for just viewing the world.
This Map was created from the Jun 11, 2011 Backup. It just took this long to upload and render and process on zoom.