[SunkenCiv]

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	Antiquity Journal  & archive  Archaeologica  Archaeology  Archaeology Channel  BAR  Bronze Age Forum  Discover  Dogpile  Eurekalert  Google  LiveScience  Mirabilis.ca  Nat Geographic  PhysOrg  Science Daily  Science News  Texas AM  Yahoo  Excerpt, or Link only?	Thanks mgstarr. Just adding to the catalog, not sending a general distribution. Constructed in 1861 just as the Civil War was begriming... Whoops. To all -- please ping me to other topics which are appropriate for the GGG list.
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[ApplegateRanch]

Nice interactive map of SF Bay defenses. Gives the active dates of each installation when you click on the map tags.

Harbor Defense of San Francisco