Mike Markkula, whose investments helped get Apple off the ground, has owned this sylvan retreat north of San Francisco since the 1980s. He began by purchasing the Rana Creek Ranch,...

The 14,000-acre ranch of Mike Markkula—Steve Jobs’ and Steve Wozniak’s co-founder and early partner at Apple—has just hit the market for $45 million. Rana Creek Ranch is a working cattle-herding...