Map · Latin

Tractus fluviorum Irtisch, Tobol, Ieniseae et Tungusae cum ipsorum fontibus adiacentibusque itidem et interiacentibus regionibus (Course of the Irtysh, Tobol, Yenisei and Tunguska rivers with their sources and the adjacent regions), Atlas Russicus sheet, 1745

Tractus Fluviorum Irtisch, Tobol, Ieniseae Et Tungusae Cum Ipsorum Fontibus, Adiacentibusque Itidem Et Interiacentibus Regionibus.

Imperial Academy of Sciences, St Petersburg

Map: Tractus fluviorum Irtisch, Tobol, Ieniseae et Tungusae cum ipsorum fontibus…, St Petersburg Academy, 1745 — Picture: David Rumsey Map Collection (CC BY-NC-SA). See it at full size at the library

How we know

compilation Assembled from earlier sources. The author did not observe it directly.

Official compilation from Siberian surveys (Messerschmidt, geodesists of the 1730s); institutional record.

Research notes

Companion sheet to the general map (previous record); second of six Siberian sheets per the Rumsey note.
Rumsey note: Outline color map. Showing administrative divisions, include roads, rivers, islands, and many place names. Title in Latin. Relief shown pictorially. No cartouche. Full title banner. Second of 6 maps of Siberia.

Why it matters

Regional sheet showing how the Academy mapped the steppe frontier that Western maps labelled 'Independent Tartary': it names peoples and rivers, not a Tartary polity.