The land from Taimyr to Cape Chelyuskin, the most northern extremity of Siberia, was mapped in many years of patient exploration by Chelyuskin, who reached the extreme point (77° 34' N.) in May 1742.
To the east of Cape Chelyuskin the Russians encountered greater difficulties.
North-east) or Chelyuskin, in 78° N.
The immense peninsula of Taymyr - a barren tundra intersected by the wild Byrranga Hills - projects in Cape Chelyuskin as far north as 77° 46' N.
Sergiev had taken from Petropavlovsk to near Cape Chelyuskin the previous Sept., left Anadir in July 1913 under Comm.
Of the New Siberia Is., again seeing no sign of Sannikov Land, and reached Cape Chelyuskin late in August.