OaklandF4i
Darwin's exception
BTW, Mike, I notice u live in that area.
Do you recommend these other spots around there?
stonyford, south cow, indian valley, knoxville.
I only have less than a year of experience on dirt, riding a CRF250L (the little red pig)...
rode trail 15/26/25/11/8 at PP. (just about right, in terms of difficulty)
Stonyford is awesome. Much larger than CC/Middle Creek/Penny Pines. Something there for everyone and more.
South Cow Mtn is also great, albeit a bit more difficult on average than Penny Pines. For that, many folks like it. Unlike Penny Pines, not a great idea to explore Cow Mtn on your own.
There really isn't a lot of "legal" riding in Indian Valley. That's not to say there are not a lot of trails there, just not officially legal. Not worth a long drive from Bay Area IMO.
Unless you live close to Knoxville or everywhere else is closed, its not worth the drive IMO. Only been once, so perhaps I've missed the good stuff.