Ковалевка - map search
Topographic map nm36-09 of scale 1:250 000
English - US Joint operational - 1978 - 8Mb -
Topographic map n36-041-2 of scale 1:50 000
Russian - Soviet military - 1995 - 3Mb -
Topographic map f03-b of scale 1:500 000
English - US military - 1966 - 8Mb -
Topographic map n42 of scale 1:1 000 000
Russian - Soviet military - 3Mb -