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Still Waters

Civil War-era tunnels found under Alcatraz

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Still Waters

A new study has found US Civil War-era tunnels and buildings buried beneath the famed Alcatraz island prison in San Francisco, California.

Historians had long-suspected that the notorious federal penitentiary had been constructed atop US military fortifications built in the 1800s.

The study of the land, which is now controlled by the National Park Service, was conducted with ground-penetrating radar and terrestrial scans.

Beneath the prison's recreation yard, researchers discovered evidence of fully buried structures, ammunition magazines and tunnels.

https://www.bbc.co.uk/news/world-us-canada-47475564

https://www.pbs.org/wgbh/nova/article/ground-penetrating-radar-reveals-military-structures-buried-beneath-alcatraz-penitentiary/

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Captain Risky

had no idea that the American civil war had reached California. 

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Rolltide
31 minutes ago, Captain Risky said:

had no idea that the American civil war had reached California. 

Yea, false title...should read "Civil War Era"

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Eldorado
2 hours ago, Rolltide said:

Yea, false title...should read "Civil War Era"

Posting a thread title is not always easy as you're limited in how many letters you can use.

It's there in the first line of the OP, though.... "A new study has found US Civil War-era tunnels..."

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Still Waters

Topic title changed. I got rid of "prison" to make it fit.

Sorry if I mislead anyone.

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