The Church of the Assumption is an historic Carpenter Gothic style Roman Catholic church located on US 41, 400 feet east of M-26 in Phoenix  in Houghton Township, Michigan. It is also known as the Phoenix Church. The church was listed on the National Register of Historic Places in 2000.
The Church of the Assumption was built in 1858 as St. Mary's Catholic Church  in Cliff. In 1899, the church was dismantled and reconstructed in its present location in Phoenix; the name was changed to the Church of the Assumption. Masses were held in the church until 1957. In 1985, the church was purchased by the Keweenaw County Historical Society, which undertook an extensive restoration process. As of 2009, the church (although deconsecrated) is still used for weddings and memorial services.