
Picnic Along Oat Hill Mine Trail
Sure, maybe you didn’t come to Calistoga to break a sweat. But if you came to enjoy the view, you’ll find plenty to see along the Oat Hill Mine Trail—and plenty of spots to stop for a scenic picnic. What opened in 1893 as a route connecting mercury mines that stretched from Calistoga to Aetna Springs (you can still spot the ruts made by wagon wheels along its volcanic rocky road), the 8.3-mile hike meanders along ancient lakes, brush-covered hillsides, and one of the best views of Nappa Valley at 1,500 feet.