The ensign of geodesy, explorer Bear Islands.
In March – April 1769 together with ensigns I.
Lysov and A.
Pushkarev with a
detachment, he moved across the ice from Nizhnekolymsk
to Bear Islands, made an accurate and detailed inventory of
February 1770 with the same comrades from the Four-Column Island,
in search of “Andreev Land”, he rode about 250 km across the ice in
the northeast direction. In
February 1771 for the third time, he and his comrades visited these
walking about 90 km to the east on the ice and not finding the land,
he turned back. His
map was published only in Soviet times. M.I. Belov
noted almost modern accuracy of this card.
In 1773 Leontyev traveled from Yakutsk to St. Petersburg with
the materials of the expedition.
The island of
the Bear Islands. First
described by Sergeant S.
by the hydrographic expedition of the Arctic Ocean in 1912.