Troitskoye on the Ust. The Trinity Church on the Ust is a solid stone building. It has four altars. In the cold part of the church, the main altar is dedicated to the Life-Giving Trinity, and on the southern side in the chapel, there is an altar in honor of the Icon of the Life-Giving Spring of the Most Holy Theotokos and Saint Alexius, Metropolitan of Moscow. In the warm refectory, on the right is the altar of Archangel Michael, and on the left, that of Saint Modest, Archbishop of Jerusalem.

The church was built in 1780 through the efforts of the parishioners. Among the relics, the icon of Saint Modest, Archbishop of Jerusalem, is especially venerated. The parish also has a stone chapel in the village of Sloboda, built in 1880.

The church has 30 desyatins and 1412 square fathoms of land. A church house is provided for the priest's residence. In the village of Troitskoye, there are 153 men and 171 women, and in total, the parish has 571 men and 579 women. The distance from the church to the parish villages does not exceed 3 versts.

In the village of Troitskoye, there is a church-parish school, founded in 1891, and church-parish guardianship. The clergy consists of a priest and a psalmist. The state salary for the clergy is 392 rubles, and the parish capital is 2160 rubles.