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TitleDateType
326 Taking samples of different snow layers for weight to find out water content. Right, Ed LaChapelle of Alta, Utah.1955-01Image
327 Taking snow out of tube to weigh for moisture content.1955-01Image
328 Terminus of the Argenta avalanche 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; 1969Image
329 Testing snow penetration using a penetrometer at Alta. Foreground, Dick Stillman of Berthoud Pass, Co.1955-01Image
330 Trucks parked on a ski run during the summer months.1970Image
331 U.S. Army -- Dugway Proving Grounds -- coop with the Wasatch National Forest Service in testing the 4-2 mortar.1966-03Image
332 U.S. Army -- Dugway Proving Grounds -- coop with the Wasatch National Forest Service in testing the 4-2 mortar.1966-03Image
333 U.S. Army -- Dugway Proving Grounds -- coop with the Wasatch National Forest Service in testing the 4-2 mortar.1966-03Image
334 U.S. Army -- Dugway Proving Grounds -- coop with the Wasatch National Forest Service in testing the 4-2 mortar.1966-03Image
335 U.S. Army -- Dugway Proving Grounds -- coop with the Wasatch National Forest Service in testing the 4-2 mortar.1966-03Image
336 U.S. Army -- Dugway Proving Grounds -- coop with the Wasatch National Forest Service in testing the 4-2 mortar.1966-03Image
337 U.S. Army and U.S. Forest Service cooperate in testing the 75mm recoilless rifle used in avalanche control.1963Image
338 U.S. Army and U.S. Forest Service employees gathered around the 105mm recoilless rifle.1956Image
339 Unidentified avalanche1939Image
340 Vehicle hit by an avalanche1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979Image
341 Vehicles hit by an avalanche1964Image
342 Vehicles hit by an avalanche1964Image
343 Vehicles hit by an avalanche1964Image
344 View of cornice fencing during the spring/summer.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; 1969Image
345 View of cornice fencing during the spring/summer.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; 1969Image
346 View of cornice fencing during the spring/summer.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; 1969Image
347 View of cornice fencing during the spring/summer.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; 1969Image
348 View of Sunnyside lift in Alta during the summer.1970Image
349 Weather chart1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959Image
350 Weather chart1940; 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; 1969Image
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