I forgot where I found this, but this might be helpful for those who are starting to explore the Santa Anas. You can see how the Main Divide connects everything together.
Google is your friend. http://www.fs.fed.us/r5/cleveland/recreation/trails/sanmateo-wild-trails.pdf Dean
Per map the Sitton Truck Trail is the only trail open to mountain bikes besides the South Main Divide Road? Ouch!
Correct wilderness area, no bikes. Wish Sitton Peak got more use it is way overgrown and a excellent out and back. Dean
Not to be a Dick (I swear) but this just reminded me of this site. Seen it? http://tinyurl.com/ylyswdq And OP, thanks for the map.
nice post man,for those who live in orange, the central library has a few books with detailed maps of clevelend forest and also local orange county trails .. from chino hills to to santiago oaks to laguna beach.. one had different loops to ride with elevation gains mileage and everything i photocopied a bunch of them,just search mountain bike in the catalog youll find em.