Members of the United States Congress started work in 1924 on upgrading Bryce Canyon's protection status from a national monument to a national park in order to establish Utah National Park. A process led by the Utah Parks Company for transferring ownership of private and state-held land in the monument to the federal government started in 1923. The last of the land in the proposed park's borders was sold to the federal government four years later, and on February 25, 1928, the renamed Bryce Canyon National Park was established.