Твердый - map search
Topographic map q54-35_36 of scale 1:200 000
Russian - Soviet military - 6Mb -
Topographic map q54-3_4 of scale 1:500 000
Russian - Soviet military - 8Mb -
Topographic map q53_54 of scale 1:1 000 000
Russian - Soviet military - 7Mb -
Topographic map c06 of scale 1:1 000 000
English - US military - 1974 - 15Mb -
Topographic map nq53-54 of scale 1:1 000 000
English - US military - 1957 - 3Mb -
Topographic map c06-c of scale 1:500 000
English - US military - 1990 - 16Mb -