Title | Date | Type | ||
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176 |
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Man pointing to a fracture line approximately 1 foot in depth at the upper area of ? | 1968 | Image |
177 |
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Man setting a charge with an electric detonator, with an explosive detonating in the snow in the background. | 1948 | Image |
178 |
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Measurement equipment | 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 | Image |
179 |
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Men buiding cornice control fences on Mt. Baldy. | 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 | Image |
180 |
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Men buiding cornice control fences on Mt. Baldy. | 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 | Image |
181 |
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Men buiding cornice control fences on Mt. Baldy. | 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 | Image |
182 |
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Men building cornice control fences on Mt. Baldy. | 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 | Image |
183 |
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Men firing a 75mm recoilless rifle. | 1966-02 | Image |
184 |
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Men firing a 75mm recoilless rifle. | 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 | Image |
185 |
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Men learning searching techniques at Avalanche School. | 1959 | Image |
186 |
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Men preparing to blast mountain as a part of avalanche control on Mt. Superior. | 1966-02 | Image |
187 |
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Men setting electric charges in P-ridge cornice while on belay. | 1948 | Image |
188 |
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Men shooting 75 recoilless to prevent an avalanche. | 1963 | Image |
189 |
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Men with 75 recoilless used in avalanche control. | 1963 | Image |
190 |
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National Forest Service sign warning skiers to stay on designated runs. | 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 | Image |
191 |
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Peruvian Lodge after it was hit by an avalanche during the Cardiff Slide. | 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969 | Image |
192 |
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Recovery of a "body" from avalanche debris. | 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 | Image |
193 |
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Remains of an avalanche | 1964 | Image |
194 |
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Remains of an avalanche | 1964 | Image |
195 |
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Remains of an avalanche | 1964 | Image |
196 |
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Remains of an avalanche | 1964 | Image |
197 |
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Remains of an avalanche | 1964 | Image |
198 |
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Rigging charges for cornice control while on belay. | 1948 | Image |
199 |
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Sketch showing rescue procedures after a snow slide. | 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 | Image |
200 |
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Ski Patrol and National Forest Service examining avalanche control guns. | 1966-02 | Image |