In 1686, Igumen Isaac and the brotherhood appealed to the Great Sovereigns Ivan Alexeyevich and Peter Alexeyevich for permission to build a settlement near the Assumption Monastery of the Dalmatov Monastery at the mouth of the Uya River. That same year, by the decree of the Sovereigns, the settlement was founded and fortified. The monastery's peasants engaged in fishing here. The settlement was named Ust-Uyskoye. In 1687, peasants Omelka Nazarov and Ivashka Kachesov from Maslyanskaya Sloboda arrived here, renting fishing rights and paying taxes. The settlement was located near fishing grounds on rivers and lakes, while the highlands had hop, haymaking, and mountain lands. Since its founding, it has repeatedly faced attacks from nomads.

According to data from 1860, the Ust-Uy fortress with the Christ the Savior Church was located in the Chelyabinsk district of the Orenburg diocese. Nearby were the Krutoyar fortress and the under-construction Mikhailo-Archangel Church in Novo-Kocherdysk, as well as the Nikolayev Church in the Proryvinsky detachment. Parishioners from the Kazak-Kocherdysk detachment were attached to the Ust-Uy Church.

Old-timers recall that the first Ust-Uy Church was located in the center of the village and served as a fortress where residents took refuge during raids. It was known as the White Church. Surrounded by thick walls, it was impregnable. Residents hid here from the Kirghiz-Kaisaks. Later, the fence was replaced with a more elegant one: a brick foundation and an iron fence. The church was heated from the basement, and there was a watchman's hut nearby. In 1929, the building was converted into a club, and during the Soviet era, the fence was replaced.

In Ust-Uyka, there is another church known as the Red Church due to its red brick. It was built over a long time, with the help of the whole community. It had carved double doors on the south, north, and west sides, and a semi-circular apse on the east. Porches rose before the entrances.

The high drum with a dome and narrow windows is adorned with carved arches. The architecture of the bell tower and drum corresponds to the traditions of church architecture of that time.

The church impresses with its beauty and grandeur, although much of it is in ruins. The interior was rich: numerous gilded icons, carved royal gates. In the spacious hall with frescoes on the walls and ceiling, biblical scenes were depicted. During holidays, a crystal chandelier with candles descended from the dome. It is said that there was an underground passage from the White Church to the Red Church.

In the 1930s, the church was destroyed: crosses and the dome were removed, the bell tower was dismantled, and the bells were thrown down. When the church began to be demolished, the whole village gathered. The large bell broke upon falling. The bell tower could not be completely destroyed.

Today, the church stands half-ruined but majestic. Inside, frescoes have survived, blackened by time. During the Soviet era, hay was stored in the church, grain from 1955, and in 1965, the parquet was taken away for flooring in the district party committee in the village of Tselinnoe.