| Feature Name: | John Leo Silver Lake Dam
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| Feature Type: | dam
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| State: | Massachusetts
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| County: | Essex
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| County Population: | 723419
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| County Housing Units: | 287144
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| County Size: | 500.67 Square Miles
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| Latitude: | 42.48667
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| Longitude: | -71.03667
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| Map Cell Name: | Boston North
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| Geographic Keywords: | John,
Leo,
Silver
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