Category:Tunnels in the United States opened in the 20th century
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Countries of the Americas: Canada · United States of America
See also category: Tunnels in the United States closed in the 20th century.
Subcategories
This category has the following 12 subcategories, out of 12 total.
Media in category "Tunnels in the United States opened in the 20th century"
This category contains only the following file.