South Hills Wilderness Area is a 3.4 mile loop trail located near Glendora, CA and is rated as difficult. The trail is primarily used for hiking and road biking and is accessible year-round.
Every time I go to Azusa-CA (South East of LA) I drive on the Glendora MT. Road. I love driving there because the roads are nice and breath taking (if you are driving fast). Besides that you can do lots of fun things like picnickers,hikes, skying (Mt. Baldy), etc.
http://en.wikipedia.org/wiki/Mount_San_Antonio. By visiting this page you can check the many hikes you can go there. I lived closed to the Glendora Mt. Road so I loved my adventures there, hiking or driving.
How do I get to the trail head?