| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1276 |
 | Indian Dwelling Ruins, Mesa Verde National Park | Image | uum_map | |
| 1277 |
 | Indians on the Old Spanish Trail | 1928; 1929; 1930; 1931; 1932; 1933 | Text | uaida_main |
| 1278 |
 | The infant Colorado near Lulu City | 1933 | Image | uum_map_rr |
| 1279 |
 | Informal meeting at the Denver USO in the Denver Train Station, (Leo Leonard in the center and Captain Salvatore Gallo, Jr. on his right) | 1955 | Image | uum_map |
| 1280 |
 | Interior of early mine [1] | 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956 | Image/StillImage | uum_map |
| 1281 |
 | Interior of early mine [2] | 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956 | Image/StillImage | uum_map |
| 1282 |
 | Interior of early mine [3] | 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956 | Image/StillImage | uum_map |
| 1283 |
 | Interior of early mine shaft, 1924 | 1924 | Image/StillImage | uum_map |
| 1284 |
 | Invitation from the citizens of the City and County of Denver, Colorado to Major Leo B. Leonard to attend an Open House at the New County Jail on Monday, February 27, 1956 | 1956-02-27 | Image | uum_map |
| 1285 |
 | Isam Dart's Branding Iron | Image/StillImage | ucl_rhc | |
| 1286 |
 | Isom Dart's Grave | 1975 | Image/StillImage | ucl_rhc |
| 1287 |
 | Jack Brennan | 1966-07 | Image | uum_map_rr |
| 1288 |
 | Jack Chew & Mary Chew | 1940 | Image/StillImage | ucl_rhc |
| 1289 |
 | Jaka Korencan, Alpine coach | 2018-03 | Image/StillImage | uum_map_usa |
| 1290 |
 | James Addison Thatcher monument, Denver | 1928; 1929; 1930 | Image/StillImage | uum_map |
| 1291 |
 | Janet Quinney (?) watching a swiftly flowing river. | 1951-06 | Image | uum_map |
| 1292 |
 | Jason Murphy at Breckenridge [1] | 2000; 2001; 2002; 2003; 2004; 2005 | Image | uum_map_usa |
| 1293 |
 | Jason Murphy at Breckenridge [2] | 2000; 2001; 2002; 2003; 2004; 2005 | Image | uum_map_usa |
| 1294 |
 | Jason Murphy at Breckenridge [3] | 2000; 2001; 2002; 2003; 2004; 2005 | Image | uum_map_usa |
| 1295 |
 | Jeff Brushie competing in the X-Games | 1998 | uum_map_usa | |
| 1296 |
 | Jeremy Elliot, Alpine coach [01] | 2018 | Image/StillImage | uum_map_usa |
| 1297 |
 | Jeremy Elliot, Alpine coach [02] | 2018 | Image/StillImage | uum_map_usa |
| 1298 |
 | John Isanakatsis, Ludlow survivor; photographed in Oak Creek, Colorado | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980 | Image | uum_map |
| 1299 |
 | John Panagos in front of a building in Denver, Colorado, 1941. | 1941 | Image | uum_map |
| 1300 |
 | John R. Hatch and Joy Stewart on Raft in Lodore Canyon | 1980 | Image | uum_map_rr |