When: Sat., April 23, 9 a.m.-2 p.m. 2016
Join Geologist John Livingston for a guided geological fieldtrip through the valley. Caravans will tour the mountains and valley floor in search of the rock and mineral makeup of the Napa Valley. Visitors will witness uplifted volcanic ash deposits, vast walls of exposed marine sediment, and massive blocks of Obsidian. The convoy will examine fault lines and view the tumultuous evidence of our tectonic history. Pre-Paid Reservations Required.