| Feature Name: | Big Tunnel
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| Feature Type: | tunnel
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| State: | Virginia
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| County: | Montgomery
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| County Population: | 83629
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| County Housing Units: | 32527
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| County Size: | 388.22 Square Miles
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| Latitude: | 37.15833
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| Longitude: | -80.31667
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| Map Cell Name: | Ironto
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| Geographic Keywords: | Tunnel
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