| Feature Name: | Alcorn Dam
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| Feature Type: | dam
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| State: | South Dakota
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| County: | Harding
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| County Population: | 1353
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| County Housing Units: | 804
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| County Size: | 2670.5 Square Miles
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| Latitude: | 45.735
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| Longitude: | -103.585
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| Map Cell Name: | McKenzie Butte
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| Geographic Keywords: | Alcorn
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