Title | Date | Type | Setname | ||
---|---|---|---|---|---|
26 | Grand Canyon National Park, Site GRCA030B, National Park Service sound spectrograms | Image | uu_wss_spec | ||
27 | Grand Canyon spring. | 1958; 1960 | Image | uum_map | |
28 | Grand Canyon, Arizona | 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965 | Image | uum_map | |
29 | Lees Ferry, Arizona, to Lake Mead, 1956 - Lava Falls to Boulder Dam. | 1956 | Image | uum_map |