Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Lower middle image

Caption: Lower middle image
Additional Description: An ocean-going dredge pumped sand and mud from the bottom of San Francisco Bay into the salt marsh in 1912 as the first step in construction of the Panama-Pacific International Exposition.
Submitted: April 18, 2019, by Joel Seewald of Madison Heights, Michigan.
Database Locator Identification Number: p470934
File Size: 3.408 Megabytes

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