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.

Photographer: Barry Swackhamer
Taken: January 9, 2012
Caption: Day Tunnel Marker
Additional Description: Photo captions, top left to bottom right:]

Tunnel entrance, ca 1860

Day Tunnel Planilla (ore sorting shed), ca late 1800s

Sherman Day, an accomplished engineer and graduate of Yale’s Sheffield School of Engineering, was hired as Superintendent and Surveyor of New Almaden’s Quicksilver Mines in 1857. He conceived several ideas that added to the success of mining operations.
Submitted: February 18, 2012, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p193457
File Size: 2.705 Megabytes

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