| Feature Name: | Blue Bird Mine Number 7
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| Feature Type: | mine
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| State: | Illinois
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| County: | Williamson
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| County Population: | 61296
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| County Housing Units: | 27703
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| County Size: | 423.41 Square Miles
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| Latitude: | 37.73694
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| Longitude: | -88.72694
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| Map Cell Name: | Carrier Mills
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| Geographic Keywords: | Bird,
Blue
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