This bird’s-eye view of downtown San Diego was drawn by Eli Glover in 1876. Prior to the development of downtown San Diego, the Rose Canyon Fault Zone was expressed on the surface and can be seen laterally offsetting topographic features. Credit: Library of Congress, Geography and Map Division.

This bird’s-eye view of downtown San Diego was drawn by Eli Glover in 1876. Prior to the development of downtown San Diego, the Rose Canyon Fault Zone was expressed on the surface and can be seen laterally offsetting topographic features. Credit: Library of Congress, Geography and Map Division.

This bird’s-eye view of downtown San Diego was drawn by Eli Glover in 1876. Prior to the development of downtown San Diego, the Rose Canyon Fault Zone was expressed on the surface and can be seen laterally offsetting topographic features. Credit: Library of Congress, Geography and Map Division.

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