Порхово - map search
Topographic map no37-07 of scale 1:250 000
English - US Joint operational - 1996 - 6Mb -
Topographic map o35-11 of scale 1:200 000
Russian - Soviet military - 2Mb -
Topographic map 1Z58 of scale 1:300 000
German - German military - 1942 - 7Mb -
Topographic map c08-26 of scale 1:84 000
Russian - Russian military - 1931 - 8Mb -
Topographic map o36-10 of scale 1:200 000
Russian - Soviet military - 2Mb -