Category:Langley Research Center Variable Density Tunnel

This is a category about a place or building that is listed on the National Register of Historic Places in the United States of America. Its reference number is 85002795.

<nowiki>Variable Density Tunnel</nowiki>
Variable Density Tunnel 
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Instance of
LocationVirginia
Architect
Heritage designation
Inception
  • 1921
Map37° 04′ 42.96″ N, 76° 20′ 39.12″ W
Authority file
Wikidata Q7915697
NRHP reference number: 85002795
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