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火曜日, 1月 13, 2026
米国カリフォルニア州・サンフランシスコ湾・アルカトラズ島
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Fortress Alcatraz: Artillery at the Gate

Discover Alcatraz’s artillery past: cannon placements, fields of fire, and the island’s role as a bay choke point.

2/3/2025
11 min read
Old cannon and stacked cannonballs

Alcatraz began as a shield for the bay.

Telegraph Hill View with Cannon

Battery Concept Purpose
Overlapping fire Deny enemy ships a safe approach
Elevated positions Extend range and visibility
Cross-bay triangulation Coordinate with shore batteries

The island’s geometry and elevation made it a natural gun platform.

著者

Alcatraz Historian

Alcatraz Historian

このガイドは、あなたのアルカトラズの一日を、やさしく、深く、忘れがたいものにするために書いた。何度も訪れて確かめた、率直なヒントを詰め込んでいる。

Tags

Fortress
Cannons
Civil War
Artillery

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