| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 776 |
 |
Yampa River Run, 1937 p. 9 | 1937 | Image/StillImage | dha_cp |
| 777 |
 |
Yellowstone National Park, Roosevelt Camp, Falls Back of Camp #1 | 1920-09-03 | Image/StillImage | dha_scnpp |
| 778 |
 |
Zion Canyon | 1917; 1918; 1919; 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937 | Image/StillImage | dha_gmo |