Peter Kropotkin and John Thomas Bealby, 1911 Encyclopædia Britannica, Volume 28… (1911)
“ An alpine country skirts the plateau all along its N.W. margin, and contains productive gold-mines in the spurs between the Vitim and the Lena. The latter stream drains the outer base of this alpine region. It is a wild land, traversed by several chains of mountains, all having a N.E. strike, and intersected by deep, narrow valleys, down which the mountain-streams tumble uncontrolled. The whole is clothed with dense forests, through which none but the Tunguses can find their way. ”
