Every so often i see messages from people who are exploring GR roots that run from or via the former Prussian area of what is now Poland. Here are some maps that may help people do a lil "orienteering"... They are especially useful, as they give a clear indication of the "centres of gravity" by "religious marker". http://www.tr62.de/maps/po-ev.html http://www.tr62.de/maps/po-cath.html http://www.tr62.de/maps/po-jews.html Thomas Rueffer has done an outstanding job on these!