Secret Underground Command Post II

Deep inside the World War II Harbor Entrance Command Post/Harbor Entrance Observation Post located in the old dynamite battery on Fort Scott.


The MARS Commander was here too.


Communications were important to the Harbor Defenses of San Francisco. This telephone frame probably postdates World War II



The air in the HECP/HEOP could be filtered for protection from a gas attack. The piping system is still in tact even if the ceiling is not. The charcoal filters are missing.

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