THE INNER CIRCLEA vital part of the San Francisco harbor defenses, this network of concrete stairs, tunnels, and pillboxes was codenamed the "Inner Circle."
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THE VIEW FROM POINT BONITA
The Inner Circle was located on the rocky heights above the Point Bonita lighthouse. From here, the minefields at the entrance of the Golden Gate were monitored 24-hours a day. |
THE OBSERVATION PILLBOXES
During the war, camouflage nets covered these concrete stations. One served as command post for the minefield commander. The other contained the command post for an artillery groupment. An elevated Navy signal station stands in the background. |
STRAFER DEFENSE
A concrete well with mounting post for automatic anti-aircraft weapon protected the surrounding installations from enemy strafing planes.
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