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ETA1131: Blackhills SD-2
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ETA1131: Blackhills SD-3
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ETA1131: Blackhills SD-7
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ETA1131: Blackhills SD-8
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ETA1131: Crazy Horse 2019
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ETA1131: Blackhills SD-18
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ETA1131: Mt. Rushmore
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ETA1131: Mount Rushmore