"I think it's a wonderful wilderness area back there," said Rancho Cucamonga resident Paul Beardsley, who was jogging on one of the trails. "And the more people who can experience it the better." ...

Some have long speculated online that the trail was ... The hike to Sapphire Falls started near Almond Street in a residential neighborhood, right where Rancho Cucamonga backs into the foothills ...

This hike in the Cupertino and Mountain View foothills is a tribute to how nature prevails in the face of industry — in many ways.