 San Francisco Chronicle | Presidio dig seeks ruins of 1820s house San Francisco Chronicle John Tillotson, right, volunteer, finds a mysterious piece of rock... Nick Triozzi, intern, and Eric Blind, archaeologist, look at an excavation in the presidio on what they think is the site of the long lost Sanchez Adobe on Friday, Aug 3, 2012 in San ... |
Saturday, August 4, 2012
Presidio dig seeks ruins of 1820s house - San Francisco Chronicle
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