Many businesses in Northern California (and other parts of the state) make extra virgin olive oil, an industry with roots dating to the late 1700s. Northern California production has seen a resurgence since the early 1990s.
Read my article in The Dallas Morning News published in December 2018. It focused on McEvoy Ranch (in featured photo), tucked into the rolling hills of northwestern Marin County near the Sonoma County border. The 550-acre ranch, which is about 40 miles north of San Francisco and 30 miles west of Napa, has been open to the public since 2015.