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TitleDateType
126Forest Service and Military personnel studying the 75mm recoilless rifle.1966-02Image
127Forest Service and Military studying 75 mm sites.1966-02Image
128Forest Service rope top and gun tower looking northeast from the parking area.1964-06Image
129Forest Service Supervisor, F.C. Koziol, and area owner, Zane Doyle, examining 75mm recoilless rifle casing used in avalanche control work.1963Image
130Fracture line at snow defense structure.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
131Fracture line on lower Mt. Baldy shoulder1955Image
132Fracture line on Mt. Baldy shoulder1955Image
133Fracture line on Mt. Baldy shoulder1950; 1951; 1952; 1953; 1954; 1955Image
134Fracture line on Mt. Baldy shoulder1948Image
135Fracture line running through snow defense structures.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
136Fracture line running through snow defense structures.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
137Fracture line running through snow defense structures.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
138Gropel type snow which provided the sliding base for an avalanche.1968Image
139Group discussion at Avalanche School1959Image
140Group discussion at Avalanche School1959Image
141Group snapshot of the Avalanche School participants1959Image
142Group snapshot of the Avalanche School participants.1959Image
143Interior of a building hit by an avalanche.1964Image
144Interior of a building hit by an avalanche.1964Image
145Interior of a building hit by an avalanche.1964Image
146Interior of a building hit by an avalanche.1964Image
147Keith Langson of the National Ski Patrol pointing to a deposit area in the canyon below.1968Image
148Large artillery piece used in avalanche control.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
149Large artillery piece used in avalanche control.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
150Large artillery piece used in avalanche control.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
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