The Gold Rush turned San Francisco into a booming city, and its riches attracted the attention of the world. The United States Army focused attention on developing coastal defenses around San Francisco Bay, in response to interest in San Francisco's excellent location and new wealth.
Centuries of Defense - Early United States (1850-1884)
Original panel for "Early United States (1850-1884)" (PDF, 107 MB)
Last updated: February 28, 2015