A network of neighborhood sub-basements are connected by rough hand-dug tunnels in and around York.

Several of the caverns used in this network may be underused basements of occupied dwellings giving access to homes in these neighborhoods.

This also makes the threat of mortals finding out about the network great, so nearly all caverns have a method to quickly close off or cave-in connecting tunnels.

Some kindred are known to have their havens located in these tunnel networks.

There are smaller, unconnected networks beneath other villages in York County.