Yamyshevo Fortress, Fortress site in Pavlodar Region, Kazakhstan

Yamyshevo Fortress is a sentinel fortification of the Irtysh line whose remains lie near the village of Yamyshevo in Kazakhstan's Pavlodar Region, on the right bank of the Irtysh by the Yamyshevo salt lake. It was founded on 10 November 1715 by a detachment under Lieutenant-Colonel I. D. Buchholz.

The fortress was built in 1715 during Russian expansion into the region to control trade routes and military access. It served as one of several outposts that helped secure the newly claimed territories.

The fortress gave its name to the Yamyshevo salt lake and the later Cossack stanitsa. Its 1716 siege was recreated in the 2019 Russian film Tobol. The site is linked to the Irtysh line of forts, including Zhelezinskaya, built to keep it in contact with Omsk.

The remains lie by the village of Yamyshevo in Kazakhstan's Pavlodar Region, on the right bank of the Irtysh near the Yamyshevo salt lake. Nothing is fenced or staffed, so plan your own route from the village. The ground is open steppe with no shade or facilities; bring water and sun protection in summer.

The 1716 siege appears in the Russian film Tobol (2019). The garrison repelled the assault but lost about 2,300 men to hunger and disease over the winter, and the 700 survivors destroyed the fortifications before sailing down the Irtysh.