This 1825 map of Yenisei Province is from a larger work, Geograficheskii atlas Rossiiskoi imperii, tsarstva Pol'skogo i velikogo kniazhestva Finliandskogo (Geographical atlas of the Russian Empire, the Kingdom of Poland, and the Grand Duchy of Finland), containing 60 maps of the Russian Empire. Compiled and engraved by Colonel V.P. Piadyshev, it reflects the detailed mapping carried out by Russian military cartographers in the first quarter of the 19th century. The map shows population centers (six gradations by size), postal stations, roads (four types), borders with foreign lands, provincial and district borders, forts, monasteries, factories, and mines. Distances are shown in versts, a Russian measure, now no longer used, equal to 1.07 kilometers. Legends and place-names are in Russian and French. The Russians reached the Yenisei region in the early 17th century, after following the east−west tributaries of the large Siberian rivers that flowed north to the Arctic Ocean. The Yenisei Province in the tsarist era was long and narrow, on a north−south axis, as it traced the basin of the Yenisei River, stretching from near the southern border of Siberia to the Arctic. Fur-trading was the mainstay of the local economy. In 1822 Yenisei Province was formed, which was part of the Governorate-General of Eastern Siberia.