| Feature Name: | Green Valley Lake Dam
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| Feature Type: | dam
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| State: | Iowa
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| County: | Union
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| County Population: | 12309
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| County Housing Units: | 5657
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| County Size: | 424.39 Square Miles
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| Latitude: | 41.09667
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| Longitude: | -94.38333
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| Map Cell Name: | Creston West
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| Geographic Keywords: | Green
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