Mayfair Ranch Trail is a hiking, biking, and horse trail in San José, California. It is within Calero County Park and Rancho Canada del Oro Open Space Preserve. It is 2.9 miles long and begins at 693 feet altitude. Traveling the entire trail is 5.9 miles with a total elevation gain of 1,721 feet. The General Parking Area parking is near the trailhead. There are also restrooms. Along the trail there is a viewpoint.