| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 801 |
 | Looking down Green River, 11 miles below Green River, Wyo. (5) | 1922-07-13 | uum_map_rr | |
| 802 |
 | Looking up Green River, 61 miles below Green River, Wyo. (9) | 1922-07-15 | uum_map_rr | |
| 803 |
 | Lost and found | 1946-11-04 | Text | uum_uhrf |
| 804 |
 | The lost colony of Owl Creek and other sketches | 1946-05-20 | Text | uum_uhrf |
| 805 |
 | Lower Falls | 1908-08-16 | Image | dha_scp |
| 806 |
 | Lower Falls: A View of the Lower Falls of the Yellowstone from Red Point" | 1897 | Image | uum_map |
| 807 |
 | Map of an exploring expedition to the Rocky Mountains in the year 1842 and to Oregon & North California in the years 1843-44 | 1845 | Image/StillImage | uu_awm |
| 808 |
 | Map of Shoshone, Goshute, Bannock, Wind River and Panamint Indian Tribal Groups | 1957 | Image/StillImage | uaida_main |
| 809 |
 | Map of the South West Boundary of the Uintah Indian Reserve Utah Territory | 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940 | Image/StillImage | uaida_main |
| 810 |
 | Map showing the boundary of the Shoshone Indian territory | 1941 | Image/StillImage | uaida_main |
| 811 |
 | Marriner Eccles and friends [02] | 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | uum_map |
| 812 |
 | Marvin and Tony in Jackson Lake area, 1977 | 1977 | Image/StillImage | uum_map |
| 813 |
 | Mary Boyd | 1890; 1891; 1892; 1893; 1894; 1895 | Image | ucl_rhc |
| 814 |
 | Matchie, Shavano, Utoka, & others | 1880 | Image/StillImage | uaida_main |
| 815 |
 | Matron's Tent - Swan Lake Camp | 1909-09 | Image | dha_scp |
| 816 |
 | Matthew Dalton Biography Excerpts | 1918 | Text | uaida_main |
| 817 |
 | Meadow, Willow Patch (090627-S17) | 2009-06-27 | Sound | uu_wss |
| 818 |
 | Meandering Stream - Yellowstone NP | 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 | Image/StillImage | uum_map |
| 819 |
 | Mexican Star quilt, by Mary Jane Haddenham | 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950 | Text | uum_uqhr |
| 820 |
 | Mobile home park by Bear River, Evanston, Wyoming (negative) [1] | 2002-04-25 | uum_map | |
| 821 |
 | Mobile home park by Bear River, Evanston, Wyoming (negative) [2] | 2002-04-25 | uum_map | |
| 822 |
 | Mobile home park by Bear River, Evanston, Wyoming (negative) [3] | 2002-04-25 | uum_map | |
| 823 |
 | Mobile home park by Bear River, Evanston, Wyoming (negative) [4] | 2002-04-25 | uum_map | |
| 824 |
 | Mobile home park by Bear River, Evanston, Wyoming (negative) [5] | 2002-04-25 | uum_map | |
| 825 |
 | Mobile home park by Bear River, Evanston, Wyoming (negative) [6] | 2002-04-25 | uum_map |