The North Baikal Highlands (Russian: Северо-Байкальское нагорье; Buryat: Хойто-Байгалай хадалиг газар)[2] are a mountainous area in Eastern Siberia, Russia.

In 1857 he mapped the Kirenga River and, while exploring its right tributary, the Cherepanikha, Kryzhin discovered the formerly unknown Akitkan Range rising above the area of its source.

His data revealed that it was a complex system of distinct high massifs, gathered either in small irregular groups or in short ridges, that were separated from each other by deep and narrow valleys.

In the western part of the North Baikal mountainous land he mapped for the first time a 175 kilometers (109 mi) stretch of the Akitkan Range.

[7] The highest point is 2,514 metres (8,248 ft) high Golets Inyaptuk in the southern part,[8] located at 56°24′14″N 111°5′7″E / 56.40389°N 111.08528°E / 56.40389; 111.08528 in the Buryatian zone of the highlands.