St. Mark's Anglican Church (Rosslyn, Ont.) is part of the Anglican Parish of West Thunder Bay, previously the Oliver Mission and the West Thunder Bay Mission.
The first mention of the church occurred at a vestry meeting on January 25, 1953. At that time church services and Sunday school were held at the Rosslyn Hall. In a 1956 vestry meeting a motion was passed to build a church for the St. Mark's congregation. On April 16, 1956 a sod turning ceremony was held on land donated to by Mike Spenchuk to become the home of St. Mark's Anglican Church (Rosslyn, Ont.) and on May 21, 1956 the cornerstone was laid by Archbishop Wright.
The first service held in the church took place on December 24, 1956. The Most Rev. W.L. Wright, Archbishop of Algoma, dedicated St. Mark's Church on May 26, 1957. In 1966 a new rectory for the Parish of West Thunder Bay was built in Rosslyn.
In 1962 outstanding debt on the building was retired but due to an oversight the building was not consecrated until October 7, 1979. The ceremony was presided over by Bishop Right Rev. F. F. Nock.
In 1982 the bell and tower was added to St. Mark's. The stained glass was installed in 1987, depicting St. Mark on the left, lion above, and Christ on the right, Crown of Life above.
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