| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 401 |
 | Notes on the History of the Southern Paiutes and Western Shoshonis | 1971 | Text | uaida_main |
| 402 |
 | Oats Field, Wells, Nevada | 1910-08-23 | Image | dha_scp |
| 403 |
 | Oats in Stacks, Wells, Nevada | 1910-08-23 | Image | dha_scp |
| 404 |
 | Ophir Camp, Birds eye. Neco mining district - Nevada | 1908; 1909; 1910; 1911; 1912 | Image | uum_map |
| 405 |
 | Oregon-California trip, 1921: Searchlight, Nevada, north of Needles, California | 1921-08-21 | Image/StillImage | uum_map |
| 406 |
 | Outlet Tunnel, Bishop Creek, Wells, Nevada | 1910-08-23 | Image | dha_scp |
| 407 |
 | Photographic copy of List of Mining Districts; 1912-1914 | 1914 | Image | uum_map |
| 408 |
 | Photographic copy of U.S. Geologic Survey Publication Geological Chart of the State of Nevada, with location of Ophir Mines drawn in | 1908; 1909; 1910; 1911; 1912 | Image | uum_map |
| 409 |
 | Photographic copy of U.S. Geologic Survey Publication Geological Chart of the State of Nevada; Showing location of Fairview, Churchill County, Nevada | Image | uum_map | |
| 410 |
 | Pilot Peak p.1 | 1929; 1930 | Image/StillImage | dha_cp |
| 411 |
 | Pioche - Nevada | 1910-05 | Image/StillImage | uum_map |
| 412 |
 | Pioche - Nevada | 1910-05 | Image/StillImage | uum_map |
| 413 |
 | Pioche - Nevada - Abandoned Pumping Plant | 1910-05 | Image/StillImage | uum_map |
| 414 |
 | Pioche - Nevada - Dickie Hotel | 1910-05 | Image/StillImage | uum_map |
| 415 |
 | Pioche - Nevada - Mountains from Southwest | 1910-05 | Image/StillImage | uum_map |
| 416 |
 | Pioche - Nevada - Raymond and Ely fissure | 1910-05 | Image/StillImage | uum_map |
| 417 |
 | Pioche - Nevada - Ten Miles East of | 1910-05 | Image/StillImage | uum_map |
| 418 |
 | Pioche - Nevada - Ten Miles East of | 1910-05 | Image/StillImage | uum_map |
| 419 |
 | Pioche, Nevada P.1 | Image | dha_cp | |
| 420 |
 | Pit at Ruth, Nevada | 1930; 1931; 1932; 1933; 1934; 1935; 1936 | uum_map | |
| 421 |
 | Placer Mine, Ely, Nevada [01] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959 | Image | uum_map |
| 422 |
 | Placer Mine, Ely, Nevada [02] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959 | Image | uum_map |
| 423 |
 | Placer Mine, Ely, Nevada [03] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959 | Image | uum_map |
| 424 |
 | Placer Mine, Ely, Nevada [04] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959 | Image | uum_map |
| 425 |
 | Placer Mine, Ely, Nevada [05] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959 | Image | uum_map |