tunnel on the circum-baikal railway at autumn near baikal lake, slyudyansky district, russia

circum-baikal railway name used construction 1899-1905 years operation baikal mysovaya trans—baikal length kilometer shore lake area rocky ridge rising lake#39aph39#s edge height 400 meters nature reserve water autumn tourism tourist hiking weekend rest foot larch tunnel structures engineering geography lake slyudyansky district russianear