road

tunnel in mine workings with regular, fairly uniform cross-section. 
roadway, tunnel

OverviewRelatedTableS1S2S3

Wikidata
underground structure, mine opening, Q1426139, Q2365637, haul road, spiral tunnel, 

• Google Knowledge entry^@
  

haul road – mine opening – spiral tunnel – 

Type	Date	Description	Keywords	Notes	Source
link		Google Knowledge entry@			Wikidata

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