| Feature Name: | Interchange 4
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| Feature Type: | crossing
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| State: | New Hampshire
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| County: | Rockingham
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| County Population: | 277359
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| County Housing Units: | 113023
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| County Size: | 694.96 Square Miles
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| Latitude: | 43.10972
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| Longitude: | -70.81667
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| Map Cell Name: | Portsmouth
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| Geographic Keywords: | Interchange
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