| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 3876 |
 | Oak Creek Dam | 1999-09-13 | Text | dha_unrnf |
| 3877 |
 | Oak Creek Historic District | 1987-07-07 | Text | dha_unrnf |
| 3878 |
 | Oak Creek Irrigation Canal | 1987-07-07 | Text | dha_unrnf |
| 3879 |
 | Oakley, Ami and Amanda, House | 1998-01-05 | Text | dha_unrnf |
| 3880 |
 | Oakwood | 1979-11-16 | Text | dha_unrnf |
| 3881 |
 | Oath of Office sworn by William Berry dated December 19, 1861 | 1861-12-19 | Text | uaida_main |
| 3882 |
 | Obedh Ornlas 2017 | 2017 | umnh_fn | |
| 3883 |
 | Oberg--Metcalf House | 1997-11-24 | Text | dha_unrnf |
| 3884 |
 | Odd Fellows Hall/Beaver Drugstore | 1983-11-29 | Text | dha_unrnf |
| 3885 |
 | Office note relating to the distribution and disbursement of goods | Text | uaida_main | |
| 3886 |
 | Officers of Wasatch Business and Professional Women, 1975 | 1975 | Image/StillImage | uum_map |
| 3887 |
 | Ogden Central Bench Historic District | 2005-07-22 | Text | dha_unrnf |
| 3888 |
 | Ogden High School | 1983-06-07 | Text | dha_unrnf |
| 3889 |
 | Ogden Union Station | 1971-04-11 | Text | dha_unrnf |
| 3890 |
 | Ogden Union Station (Boundary Increase) | 2005-04-29 | Text | dha_unrnf |
| 3891 |
 | Ogden Union Stockyard Exchange Building | 2015-07-07 | Text | dha_unrnf |
| 3892 |
 | Ogden/Weber Municipal Building | 1983-06-07 | Text | dha_unrnf |
| 3893 |
 | Oil & Gas Fields and Pipelines of Utah - Revised 1976 | 1976 | Image/StillImage | ucl_maps |
| 3894 |
 | Oil and Gas Wells of Utah 1891-1948 | 1891; 1892; 1893; 1894; 1895; 1896; 1897; 1898; 1899; 1900; 1901; 1902; 1903; 1904; 1905; 1906; 1907; 1908; 1909; 1910; 1911; 1912; 1913; 1914; 1915; 1916; 1917; 1918; 1919; 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; ... | Image/StillImage | ucl_maps |
| 3895 |
 | Olcott, Frances A., House | 1983-11-30 | Text | dha_unrnf |
| 3896 |
 | Old Clock at Zion's First National Bank | 1982-12-27 | Text | dha_unrnf |
| 3897 |
 | Old documents (deeds, notices of appointment, etc.) found in the old secretary of William Davenport of Parowan | 1873; 1881; 1882; 1884; 1885; 1886; 1890; 1891; 1893 | Text | uum_uhrf |
| 3898 |
 | Old farm house | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image | uum_map |
| 3899 |
 | Old Goshen Site | 1980-08-26 | Text | dha_unrnf |
| 3900 |
 | Old Irontown | 1971-05-14 | Text | dha_unrnf |