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Wisconsin, 1979
Wisconsin, 1980
Wisconsin, 1980
Point Reyes, CA, 1981
Wisconsin, 1981
Wisconsin, 1981
Wisconsin, 1981
Wisconsin, 1981
Wisconsin, 1981
Wisconsin, 1982
Wisconsin, 1982
Wisconsin, 1984
Wisconsin, 1984
Washington state, 1985
Washington state, 1985
Colorado, 1991
Colorado, 1991
Colorado, 1991