Mill in Kołacin – a wooden water-electric mill on the Mroga River built at the end of the 19th century.
Water mills in this location were mentioned in documents from the turn of the 18th and 19th centuries. The memory of a mill that existed in the 19th century has been preserved: a wooden, single-storey building on a rectangular plan, situated partly on water piles and partly on solid land, with a hipped roof covered with thatch. This building was demolished due to old age at the end of the 19th century.
In the place of the demolished mill, the current mill was built at the end of the 19th century, which underwent several reconstructions, including being significantly raised. Currently, it is a wooden building of post and beam construction, boarded with planks, with a gable roof and an adjacent single-storey extension. Initially, it was powered by a water wheel and equipped with 2 pairs of French stones, a żubrownik, perlak and jagielnik. Before World War I, a water turbine was installed in the mill. The stones were replaced with rollers and the millet mill and the perlak were eliminated. During World War II, the mill was in operation. During the Polish People's Republic, it was privately owned. It was used as a grain mill, and then (from 1965) as a wood flour factory. In 2024, it is in operation as a grain mill.