| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 251 |
 | Clyde S. Huffman 1952 | 1952 | umnh_fn | |
| 252 |
 | Collared lizard on rock [1] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970 | Image | uum_map_rr |
| 253 |
 | Collared lizard on rock [2] | 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970 | Image | uum_map_rr |
| 254 |
 | Colorado River | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/MovingImage | uum_avac |
| 255 |
 | Colorado River -- Confluence p.1 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 256 |
 | Colorado River -- Confluence p.2 | 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955 | Image/StillImage | dha_cp |
| 257 |
 | Colorado River -- Crossing of the Fathers p.10 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963 | Image/StillImage | dha_cp |
| 258 |
 | Colorado River -- Crossing of the Fathers p.3 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963 | Image/StillImage | dha_cp |
| 259 |
 | Colorado River -- Crossing of the Fathers p.6 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963 | Image/StillImage | dha_cp |
| 260 |
 | Colorado River -- Crossing of the Fathers p.7 | 1951; 1952; 1953; 1954; 1955; 1956; 1957 | Image/StillImage | dha_cp |
| 261 |
 | Colorado River -- Crossing of the Fathers p.8 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963 | Image/StillImage | dha_cp |
| 262 |
 | Colorado River -- Excursions p.10 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 263 |
 | Colorado River -- Excursions p.3 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 264 |
 | Colorado River -- Excursions p.4 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 265 |
 | Colorado River -- Excursions p.6 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 266 |
 | Colorado River -- Excursions p.8 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 267 |
 | Colorado River -- Glen Canyon p.10 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 268 |
 | Colorado River -- Glen Canyon p.11 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 269 |
 | Colorado River -- Glen Canyon p.12 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 270 |
 | Colorado River -- Glen Canyon p.13 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 271 |
 | Colorado River -- Glen Canyon p.14 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 272 |
 | Colorado River -- Glen Canyon p.15 | 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955 | Image/StillImage | dha_cp |
| 273 |
 | Colorado River -- Glen Canyon p.6 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 274 |
 | Colorado River -- Glen Canyon p.9 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |
| 275 |
 | Colorado River p.6 | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960 | Image/StillImage | dha_cp |