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Dr Yool: CO 5b
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Dr Yool: Dscf1958
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Dr Yool: Dscf1959
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Dr Yool: Dscf1962
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Dr Yool: SLR - Rocky Mountain Nation Park
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Dr Yool: SLR - Bighorn sheep
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Dr Yool: Dscf1963b
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Dr Yool: Dscf1965
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Dr Yool: Dscf1972
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Dr Yool: Dscf1973
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Dr Yool: Dscf1974
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Dr Yool: Dscf1978
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Dr Yool: Dscf1979
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Dr Yool: Dscf1982
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Dr Yool: Dscf1985
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Dr Yool: Dscf1986
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Dr Yool: Dscf1989
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Dr Yool: Dscf1991
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Dr Yool: Dscf1994
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Dr Yool: Dscf1996
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Dr Yool: Dscf1997
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Dr Yool: Dscf1998
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Dr Yool: Dscf1999
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Dr Yool: Dscf2000
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Dr Yool: Dscf2001
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Dr Yool: Dscf2002
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Dr Yool: Dscf2004
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Dr Yool: Dscf2005
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Dr Yool: Dscf2006
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Dr Yool: Dscf2007