Опорец - map search
Topographic map P53S37 of scale 1:100 000
Poland - Poland WIG - 1937 - 7Mb -
Topographic map m34-119 of scale 1:100 000
Russian - Soviet military - 1988 - 3Mb -
Topographic map 10-29 of scale 1:75 000
German - Austrian military - 1897 - 17Mb -
Topographic map m34-4 of scale 1:500 000
Russian - Soviet military - 1939 - 8Mb -