| Feature Name: | Eureka Lake
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| Feature Type: | reservoir
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| State: | South Dakota
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| County: | McPherson
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| County Population: | 2904
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| County Housing Units: | 1465
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| County Size: | 1136.94 Square Miles
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| Latitude: | 45.77194
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| Longitude: | -99.64028
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| Map Cell Name: | Eureka West
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| Geographic Keywords: | Eureka
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