tunnel on the circum-baikal railway at autumn and 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 lake39aph39s edge height 400 meters nature reserve water autumn tourism tourist hiking weekend rest foot larch tunnel structures engineering geography slyudyansky district russianear