National Historic Register properties in Union county/parish, Oregon
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Ascension Episcopal Church and Rectory (Cove)
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Elgin City Hall and Opera House (Elgin)
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Liberty Theater (Lagrande)
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Administration Building (La Grande)
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Anthony-Buckley House (La Grande)
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Anthony, John, House (La Grande)
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Foley Building (La Grande)
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Hot Lake Resort (La Grande)
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La Grande Commercial Historic District (La Grande)
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La Grande Neighborhood Club (La Grande)
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Oregon Trail: La Grande to Hilgard Segment (La Grande)
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Roesch Building (La Grande)
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Slater Building (La Grande)
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Stange, August J., House (La Grande)
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Union County Alliance Flouring Mill (La Grande)
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U.S. Post Office and Federal Building (La Grande)
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Hudelson, A.B. and Son, Building (North Powder)
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Dry Creek School (Summerville)
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Eaton, Abel E., House (Union)
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Townley, W. J., House (Union)
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Union Main Street Historic District (Union)