| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 51 |  | Mathis, W.B. | 1937 | Image/StillImage | dha_uslp |
| 52 |  | Miller, Albert E. | 1939; 1940 | Image/StillImage | dha_uslp |
| 53 |  | Miller, Albert E. | 1941 | Image/StillImage | dha_uslp |
| 54 |  | Miscellaneous Residences-Pinto P.1 | 1935 | Image | dha_cp |
| 55 |  | Mount Carmel Tunnel | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_alwmc |
| 56 |  | Mountain Meadows Massacre-Marker P.1 | 1900 | Image | dha_cp |
| 57 |  | Mountain Meadows Massacre-Marker P.11 | 1877-04-14 | Image | dha_cp |
| 58 |  | Mountain Meadows Massacre-Marker P.2 | 1900 | Image | dha_cp |
| 59 |  | Mountain Meadows Massacre-Marker P.3 | 1900 | Image | dha_cp |
| 60 |  | Mountain Meadows Massacre-Marker P.4 | 1932 | Image | dha_cp |
| 61 |  | Mountain Meadows Massacre-Marker P.5 | 1932 | Image | dha_cp |
| 62 |  | Mountain Meadows Massacre-Marker P.6 | 1932-09 | Image | dha_cp |
| 63 |  | Mountain Meadows Massacre-Marker P.8 | 1932 | Image | dha_cp |
| 64 |  | Mountain Meadows Massacre-Marker P.9 | 1932 | Image | dha_cp |
| 65 |  | Near Leeds, Utah | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_alwmc |
| 66 |  | Oregon Short Line Railroad - Weiser, Idaho Depot | 1910; 1906; 1907; 1908; 1909; 1911; 1912; 1913; 1914 | Image | dha_scp |
| 67 |  | Pecan Tree P.2 | 1934 | Image | dha_cp |
| 68 |  | Pecan Tree P.3 | 1934 | Image | dha_cp |
| 69 |  | Petroglyphs P.11 | 1939 | Image | dha_cp |
| 70 |  | Picnic P.4 | 1916-11-15 | Image | dha_cp |
| 71 |  | Pine Valley Mountains p.1 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961 | Image/StillImage | dha_cp |
| 72 |  | Pine Valley Ward p.3 | 1968 | Image | dha_cp |
| 73 |  | Pioneer Day Celebration St. George Ut. p.1 | 1880; 1881; 1882; 1883; 1884; 1885; 1886; 1887; 1888; 1889; 1890; 1891; 1892; 1893; 1894; 1895; 1896; 1897; 1898; 1899; 1900 | Image/StillImage | dha_cp |
| 74 |  | Plum Orchard P.1 | 1935 | Image | dha_cp |
| 75 |  | Powell Expedition (2nd) P.28 | 1874 | Image | dha_cp |